Chain Reaction UK

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About Chain Reaction UK
Chain Reaction Cycles (CRC) are based in Doagh, in Northern Ireland, originally started out as Ballynure Cycles in 1984 and changing their name after a move to a new shop in 1989. In 2011 they opened a 10,000sq ft standalone retail store in Belfast, Northern Ireland. By 2013 they had become the largest online bike shop in the world!

CRC exists to deliver a world class shopping experience to cyclists around the globe, offering the lowest prices on everything you need to feed your cycling habit, and delivering directly to you with no fuss.
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We currently have 41186 products listed for Chain Reaction UK, that's 41186 opportunities for you to save money!

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Chain Reaction UK have 41186 products listed

Deda Elementi Carbon Blast Clip-On Aero Bars - Black - 31.7mm, Black
  • £219.99
  • RRP £364.99
  • Saving you £40

Deda Elementi Carbon Blast Clip-On AerobarsGenial design that can transform your road bike in a refined time-fighting machine.Features:Carbon fiber monocoque component, integrated extension and armrest plate.Front link bridge (as required by the International Triathlon Union (ITU)) included.Perfect fit for 31.7mm diameter handlebar.Aero extension lenght (from handlebar center) 140mmWeight: 226 grams including pads.Finish: carbon fiber UD matte clear.Bar width measured outside to outsideBuy Deda Elementi Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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PROLOGO Nago Evo CPC Road Bike Saddle - Black - 134mm Wide, Black
  • £219.99

PROLOGO Nago Evo CPC Road Bike SaddleA semi-round saddle suitable for medium to long distance riding. Nack rails made from carbon fibre making them lightweight and very strong.Nack: Nano carbon fiber rail. Carbon fiber, Kevlar and aluminum filaments seat-post clamp area, treated with the production process called Braided Carbon Rail (BCR). This is done in order to obtain “the perfect fusion” and uniformity of the several type of fibers and materials. The result is a balance structure and resistant to penetration.Carbon Fibre Injection: The percentage of carbon fibre into the compound can vary model by model and it can go from 14% up to 18%. The Carbon Fibre injection gives strength to the base increasing its stiffness and duration.SHAPE: RoundEND USE: RoadLearn more, with the PROLOGO Buying Guide.CPC - How does it work?Shock Absorption - CUSHIONING EFFECT. Thanks to the stratigically placed polymer-shaped volcanos, the elasticity absorbs all shocks and vibrations resulting from the "Roads".The CPC Polymer - The CPC is a special 3D Polymer by the long chain molecular aggregation. It differs from all other polymers present on the market as it has the ability to absorb shock and vibration, and it will not lose its main features over time, ensuring its effectiveness in any weather conditions for a long time.Vibration Absorption - The CPC with its Nano-structures, protects muscles, tendons and soft tissue stress, shock, vibration and oscillation that results from continuous pedaling, this reduces muscle fatigue, improving recovery time after riding. Grip and position - The CPC ensures perfect grip and positioning. The "design of the material CPC (multiple empty cylinders), it creates a "vacum effect", ensuring a perfect posture and better aerodynamics. There are many advantages for the athlete: aerodynamics', increases power while improving performance and comfort.Air Cooling - The CPC allows a continuous flow of air, improving comfort and performance in all weather conditions.Massaging and Manipulation - Thanks to this special material, CPC system uses the kinetic power produced by the athlete to stimulate blood flow and eliminate tingling or numbness. It therefore benefits the nerves and tendons by helping to avoid tunnel carpal syndrome.Features:Size: 278 x 134mmWeight: 206gBase: Carbon fibre injectionRail: CarbonCover: Microfiber+CPCPadding: EV2Buy PROLOGO Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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PROLOGO T-GALE PAS Tirox Rail Time Trial Saddle - Hard Black - 128mm Wide, Hard Black
  • £219.99

PROLOGO T-GALE PAS Tirox Rail Time Trial SaddleThis flat saddle has been especially designed to get the most out of Time Trial events. The nose is 4cm shorter than a normal saddle making maximum power output to a higher level possible. It also aids the removal of pressure in the same pelvic area when laying the power down.Pas System (perineal area system): This system is designed to eliminate pressure spikes and numbness in the pelvic area. The Pas System is achieved thanks to an advanced memory foam style padding which shapes to the rider's sit bone shape. This ensures that pelvis movement during very long distance cycles is not strenuous. The final result is comfort and performance with no feeling of fatigue or numbness.SHAPE: FlatEND USE: TriathlonLearn more, with the PROLOGO Buying Guide.Features:Shell: Carbon Injection MonocoqueRail: TiroxCover: Microfiber + CPCPadding: Light FoamLength: 240mmWidth: 128mmWeight: 259gBuy ProLogo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Selle Italia SLR Kit Carbonio Bike Saddle - Black - S1}, Black
  • £219.99
  • RRP £264.99
  • Saving you £17

Selle Italia SLR Kit Carbonio Bike SaddleDeveloped for both on and off-road performance, this lightweight and ultra-resistant saddle excels wherever your ride takes you. It features a robust Fibra-Tek cover construction, which makes it more than capable of handling multiple changes to your riding position, as well as the increased pressure that's associated with racing. Selle Italia has also equipped it with CarboKeramic (carbon) rails, so you can benefit from their incredibly strong, stiff and low weight for a superior riding experience.Features: Cover Material: Fibra-Tek Rail Material: Carbon/Keramic Use: Road, Racing, Endurance and MTB Rail Size: 7x9mm Dimensions:S: 131x275mm Category: Performance Lightweight Weight: 122gBuy Selle Italia Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Selle Italia Flite Boost Kit Carbonio Saddle - Black - S1}, Black
  • £219.99
  • RRP £289.99
  • Saving you £24

Selle Italia Flite Boost Kit Carbonio SaddleBoasting a more compact shape, carbon rails and an impressively low weight, this saddle celebrates 30 years of history by continuing the tradition of greatness. It features a durable Fibra-Tek cover construction, which makes it more than capable of handling the increased pressure and changes to your riding position, as you battle across unpredictable mixed terrain conditions. Selle Italia has also equipped it with CarboKeramic (carbon) rails that allow you to benefit from their superior strength to weight ratio, whatever your riding discipline. Weighing in at only 180g (large version), this is a great choice of upgrade for riders who want maximum performance without any unnecessary weight.Updated Flite LogoA revised Flite logo, to relive the history and successes of a legendary product. A saddle that has supported and still supports champions such as Mathieu Van Der Poel, Caleb Ewan, Philippe Gilbert and many others.Flat and Boost ShapeThe Flite Boost resumes the classic “Flat” shape that has always distinguished the Flite family to guarantee, together with a more compact shape (250mm of length), the usual performance and maximum stability while pedalling.Saddle InfoThe updated visible shell of the Flite Boost allows it to make visible and always usable some technical details of the saddle, such as width and length. Further detail for an excellent product.Features: Cover Material: Fibra-Tek Rail Material: Carbon (+10mm) Use: Road, Racing, Endurance and MTB Dimensions: S: 135x250mm; L: 145x250mm Category: Performance Lightweight Flat Boost shape Manufacturer's Part Numbers: Black S S1: 017A120ICA011; Black L L1: 017A320ICA011 Weight: L: 180g (large version)Buy Selle Italia Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Selle Italia Flite Boost Kit Carbonio Saddle - Black - L1}, Black
  • £219.99
  • RRP £289.99
  • Saving you £24

Selle Italia Flite Boost Kit Carbonio SaddleBoasting a more compact shape, carbon rails and an impressively low weight, this saddle celebrates 30 years of history by continuing the tradition of greatness. It features a durable Fibra-Tek cover construction, which makes it more than capable of handling the increased pressure and changes to your riding position, as you battle across unpredictable mixed terrain conditions. Selle Italia has also equipped it with CarboKeramic (carbon) rails that allow you to benefit from their superior strength to weight ratio, whatever your riding discipline. Weighing in at only 180g (large version), this is a great choice of upgrade for riders who want maximum performance without any unnecessary weight.Updated Flite LogoA revised Flite logo, to relive the history and successes of a legendary product. A saddle that has supported and still supports champions such as Mathieu Van Der Poel, Caleb Ewan, Philippe Gilbert and many others.Flat and Boost ShapeThe Flite Boost resumes the classic “Flat” shape that has always distinguished the Flite family to guarantee, together with a more compact shape (250mm of length), the usual performance and maximum stability while pedalling.Saddle InfoThe updated visible shell of the Flite Boost allows it to make visible and always usable some technical details of the saddle, such as width and length. Further detail for an excellent product.Features: Cover Material: Fibra-Tek Rail Material: Carbon (+10mm) Use: Road, Racing, Endurance and MTB Dimensions: S: 135x250mm; L: 145x250mm Category: Performance Lightweight Flat Boost shape Manufacturer's Part Numbers: Black S S1: 017A120ICA011; Black L L1: 017A320ICA011 Weight: L: 180g (large version)Buy Selle Italia Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Hope Fortus 35 Mountain Bike Rear Wheel - Black - 12 x 142mm, Black
  • £219.99
  • RRP £264.99
  • Saving you £17

Hope Fortus 35 Mountain Bike Rear WheelReady to take on whatever challenges the trails throw at you, the Fortus 35 Mountain Bike (MTB) Rear Wheel features a 35mm-wide tubeless compatible rim and Pro 4 hub to give you the best performance whatever the terrain. Hope has constructed it from durable welded aluminium, so it’s built to withstand all the abuses of the roughest trails. It can also handle tyres up to 3" wide. Benefiting from a fast-engaging four-pawl ratchet system freehub, the Fortus 35 is an ideal option for anyone wanting to get the best out of their bike.End Caps Info- 12x142mm rear wheels come with 135 QR end caps included. - 12x148mm rear wheels do not include any other end caps.- Single Speed 135mm rear wheels come with 135x10mm bolt end caps.Features: Rim Material: Welded 6061 T6 Aluminium rim with eyelets Spoke Material: Black Sapim Race Stainless-Steel double butted spokes Spoke Nipple Material: Silver brass nipples Brake Type: Disc Brake Rotor Mount Type: 6 bolt Rim Internal Width: 35mm Rim External Width: 40mm Rim Height: 18.5mm Rim Effective Rim Diameter (ERD): 27.5": 567mm; 29": 605mm Axle Type: Separate 12x142mm and 12x148mm options Use: Cross Country (XC), Enduro, Trail Tubeless Ready: Yes Spoke Count: 32 Spoke Type: Sapim Race, stainless-steel, J-Bend Hub Type: Hope Pro 4 Freehub: Four-pawl, ratchet system with 44 tooth engagement (8.2°) Included: 37mm rim tape, tubeless valve and wipe included for tubeless setup Recommended Tyre Width: 2.5-3.0" Cassette Compatibility: "Micro Spline" Option: Shimano 12-Speed only "Shimano" Option: Shimano 9-11-Speed "SRAM XD" Option: SRAM XD 11/12-Speed "Steel" Option: Shimano 9-11-Speed Buy Hope Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon V2 Rear Wheel 102t - Black - HG - 142mm x 12mm HG}, Black - HG
  • £219.99
  • RRP £249.99
  • Saving you £12

Nukeproof Horizon V2 Rear Wheel 102tThis MTB rear wheel features a revised design, which gives you fast and smooth-rolling performance as you shred the trails. Coming equipped with Nukeproof's extensively trailed and tested alloy blend, its rim construction is specifically made to meet the demands of both enduro and DH riders. Producing a hardness similar to 7-series alloy but with the ductility and yield properties of a 6-series, this rear wheel gives you the best of both worlds in terms of strength, stiffness and weight.Nukeproof has ensured this rear wheel's rim profile is the same as the front (sold separately), with the only difference being that the rear has a thicker sidewall for added strength on the trails. Another benefit is it comes equipped with J-bend spokes, which means that tensioning and spoke replacement is quick and easy.Enduro ABEC 5 BearingsAfter extensive testing with various brands of bearings, Nukeproof chose to use Enduro ABEC 5 bearings in this rear wheel. These bearings have the “LLU/LLB” seal type, which uses two lips that make light contact in a groove to create a labyrinth where the water or dirt has a more difficult time to penetrate. LLU seals are similar, only the contact pressure or interference fit is greater to seal better. Enduro bearings have 80% grease fill on both sides whereas most other bearings have 35% grease fill on one side. This delivers full coverage, so there are no dry areas as well as avoiding metal on metal contact or wear. This means that the axle feels tight out of the box and after a couple of rides it will become free.Nukeproof Horizon V2 HubThis MTB rear wheel features a revised Nukeproof Horizon V2 hub that now has 102 points of engagement and comes in a range of freehub options. Freehubs are also available separately and easily changeable if you choose upgrade your drivetrain in the future. Nukeproof's 142mm hub can be converted to 135mm QR and the 148mm HG / XD hub can be converted to 141mm using end caps. The hub has also been machined to remove excess material and make it as strong and light as possible. Nukeproof has fitted these hubs with our louder pawls & springs, this gives the wheel a nice buzz as you head down the trail. If you prefer the quiet life, you can get the quieter ones which are available separately. What's Included?Wheels come taped with tubeless valve installed so all you need to do is fit your tyre and add sealant. The tubeless valve supplied is the new Nukeproof Horizon valve which is compatible with Nukeproof ARD and other tyre inserts aswell as the cap having a core remover built in. A full range of spares are available to service your hub in the future. Spoke length's on Nukeproof wheels are the same regardless of spacing, the length changes with wheel size: Wheel Wheel Size Non Drive Side Spoke Length Driveside Spoke Length Rear 27.5" 271 268 Rear 29" 289 286 Conversion kits and replacement end caps available separately. Caps  Nukeproof Part Number        Replacement or Conversion Rear 135mm QR   NUKHORV2R135CAPS  Convert Non Boost 142mm hub to QR Rear 141mm  NUKHORV2R141BCAPS   Convert Boost 148mm HG / XD hub to 141mm QR (It is not possible to convert Nukeproof's 148mm microspline hubs to QR) Rear 142/148/157mm    NUKHORV2R148CAPS  Replacement caps for 142mm, 148mm and 157mm  Rear 150mm     NUKHORV2R150CAPS  Replacement 150mm caps Features: Rim Material: Alloy Nukeproof Blend Use: MTB, All Mountain, Enduro and DH Spacing Options: 142x12mm; 148x12mm and 150/157x12mm Conversion Options: 142x12mm can be converted to 135mm QR, 148x12mm HG / XD can be converted to 141mm Boost with end caps (sold separately) Freehub Options: Shimano HG, Shimano Microspline and SRAM XD Rear Hub Engagement: 102 points of engagement (every 3.52°) Wheel Size: 27.5" or 29" options Inner Rim Width: 30mm Outer Rim Width: 35mm Rim Height: 21.6mm Tubeless Ready: Yes, pre-taped and valve supplied Spoke Count: 32 Spoke Type: J-Bend Disc Mount: 6-Bolt Lacing Pattern: 3x Build: Hand built Single or Pair: Single Weight: 27.5” 148x12mm HG: 1093g; 27.5” 150x12mm HG: 1116g, 29” 148mm x 12mm XD: 1146g (All weights include tape & valve)Buy Nukeproof Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon V2 Rear Wheel 102t - Black - MS - 148mm x 12mm MS}, Black - MS
  • £219.99
  • RRP £249.99
  • Saving you £12

Nukeproof Horizon V2 Rear Wheel 102tThis MTB rear wheel features a revised design, which gives you fast and smooth-rolling performance as you shred the trails. Coming equipped with Nukeproof's extensively trailed and tested alloy blend, its rim construction is specifically made to meet the demands of both enduro and DH riders. Producing a hardness similar to 7-series alloy but with the ductility and yield properties of a 6-series, this rear wheel gives you the best of both worlds in terms of strength, stiffness and weight.Nukeproof has ensured this rear wheel's rim profile is the same as the front (sold separately), with the only difference being that the rear has a thicker sidewall for added strength on the trails. Another benefit is it comes equipped with J-bend spokes, which means that tensioning and spoke replacement is quick and easy.Enduro ABEC 5 BearingsAfter extensive testing with various brands of bearings, Nukeproof chose to use Enduro ABEC 5 bearings in this rear wheel. These bearings have the “LLU/LLB” seal type, which uses two lips that make light contact in a groove to create a labyrinth where the water or dirt has a more difficult time to penetrate. LLU seals are similar, only the contact pressure or interference fit is greater to seal better. Enduro bearings have 80% grease fill on both sides whereas most other bearings have 35% grease fill on one side. This delivers full coverage, so there are no dry areas as well as avoiding metal on metal contact or wear. This means that the axle feels tight out of the box and after a couple of rides it will become free.Nukeproof Horizon V2 HubThis MTB rear wheel features a revised Nukeproof Horizon V2 hub that now has 102 points of engagement and comes in a range of freehub options. Freehubs are also available separately and easily changeable if you choose upgrade your drivetrain in the future. Nukeproof's 142mm hub can be converted to 135mm QR and the 148mm HG / XD hub can be converted to 141mm using end caps. The hub has also been machined to remove excess material and make it as strong and light as possible. Nukeproof has fitted these hubs with our louder pawls & springs, this gives the wheel a nice buzz as you head down the trail. If you prefer the quiet life, you can get the quieter ones which are available separately. What's Included?Wheels come taped with tubeless valve installed so all you need to do is fit your tyre and add sealant. The tubeless valve supplied is the new Nukeproof Horizon valve which is compatible with Nukeproof ARD and other tyre inserts aswell as the cap having a core remover built in. A full range of spares are available to service your hub in the future. Spoke length's on Nukeproof wheels are the same regardless of spacing, the length changes with wheel size: Wheel Wheel Size Non Drive Side Spoke Length Driveside Spoke Length Rear 27.5" 271 268 Rear 29" 289 286 Conversion kits and replacement end caps available separately. Caps  Nukeproof Part Number        Replacement or Conversion Rear 135mm QR   NUKHORV2R135CAPS  Convert Non Boost 142mm hub to QR Rear 141mm  NUKHORV2R141BCAPS   Convert Boost 148mm HG / XD hub to 141mm QR (It is not possible to convert Nukeproof's 148mm microspline hubs to QR) Rear 142/148/157mm    NUKHORV2R148CAPS  Replacement caps for 142mm, 148mm and 157mm  Rear 150mm     NUKHORV2R150CAPS  Replacement 150mm caps Features: Rim Material: Alloy Nukeproof Blend Use: MTB, All Mountain, Enduro and DH Spacing Options: 142x12mm; 148x12mm and 150/157x12mm Conversion Options: 142x12mm can be converted to 135mm QR, 148x12mm HG / XD can be converted to 141mm Boost with end caps (sold separately) Freehub Options: Shimano HG, Shimano Microspline and SRAM XD Rear Hub Engagement: 102 points of engagement (every 3.52°) Wheel Size: 27.5" or 29" options Inner Rim Width: 30mm Outer Rim Width: 35mm Rim Height: 21.6mm Tubeless Ready: Yes, pre-taped and valve supplied Spoke Count: 32 Spoke Type: J-Bend Disc Mount: 6-Bolt Lacing Pattern: 3x Build: Hand built Single or Pair: Single Weight: 27.5” 148x12mm HG: 1093g; 27.5” 150x12mm HG: 1116g, 29” 148mm x 12mm XD: 1146g (All weights include tape & valve)Buy Nukeproof Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon V2 Rear Wheel 102t - Black - HG - 148mm x 12mm HG}, Black - HG
  • £219.99
  • RRP £249.99
  • Saving you £12

Nukeproof Horizon V2 Rear Wheel 102tThis MTB rear wheel features a revised design, which gives you fast and smooth-rolling performance as you shred the trails. Coming equipped with Nukeproof's extensively trailed and tested alloy blend, its rim construction is specifically made to meet the demands of both enduro and DH riders. Producing a hardness similar to 7-series alloy but with the ductility and yield properties of a 6-series, this rear wheel gives you the best of both worlds in terms of strength, stiffness and weight.Nukeproof has ensured this rear wheel's rim profile is the same as the front (sold separately), with the only difference being that the rear has a thicker sidewall for added strength on the trails. Another benefit is it comes equipped with J-bend spokes, which means that tensioning and spoke replacement is quick and easy.Enduro ABEC 5 BearingsAfter extensive testing with various brands of bearings, Nukeproof chose to use Enduro ABEC 5 bearings in this rear wheel. These bearings have the “LLU/LLB” seal type, which uses two lips that make light contact in a groove to create a labyrinth where the water or dirt has a more difficult time to penetrate. LLU seals are similar, only the contact pressure or interference fit is greater to seal better. Enduro bearings have 80% grease fill on both sides whereas most other bearings have 35% grease fill on one side. This delivers full coverage, so there are no dry areas as well as avoiding metal on metal contact or wear. This means that the axle feels tight out of the box and after a couple of rides it will become free.Nukeproof Horizon V2 HubThis MTB rear wheel features a revised Nukeproof Horizon V2 hub that now has 102 points of engagement and comes in a range of freehub options. Freehubs are also available separately and easily changeable if you choose upgrade your drivetrain in the future. Nukeproof's 142mm hub can be converted to 135mm QR and the 148mm HG / XD hub can be converted to 141mm using end caps. The hub has also been machined to remove excess material and make it as strong and light as possible. Nukeproof has fitted these hubs with our louder pawls & springs, this gives the wheel a nice buzz as you head down the trail. If you prefer the quiet life, you can get the quieter ones which are available separately. What's Included?Wheels come taped with tubeless valve installed so all you need to do is fit your tyre and add sealant. The tubeless valve supplied is the new Nukeproof Horizon valve which is compatible with Nukeproof ARD and other tyre inserts aswell as the cap having a core remover built in. A full range of spares are available to service your hub in the future. Spoke length's on Nukeproof wheels are the same regardless of spacing, the length changes with wheel size: Wheel Wheel Size Non Drive Side Spoke Length Driveside Spoke Length Rear 27.5" 271 268 Rear 29" 289 286 Conversion kits and replacement end caps available separately. Caps  Nukeproof Part Number        Replacement or Conversion Rear 135mm QR   NUKHORV2R135CAPS  Convert Non Boost 142mm hub to QR Rear 141mm  NUKHORV2R141BCAPS   Convert Boost 148mm HG / XD hub to 141mm QR (It is not possible to convert Nukeproof's 148mm microspline hubs to QR) Rear 142/148/157mm    NUKHORV2R148CAPS  Replacement caps for 142mm, 148mm and 157mm  Rear 150mm     NUKHORV2R150CAPS  Replacement 150mm caps Features: Rim Material: Alloy Nukeproof Blend Use: MTB, All Mountain, Enduro and DH Spacing Options: 142x12mm; 148x12mm and 150/157x12mm Conversion Options: 142x12mm can be converted to 135mm QR, 148x12mm HG / XD can be converted to 141mm Boost with end caps (sold separately) Freehub Options: Shimano HG, Shimano Microspline and SRAM XD Rear Hub Engagement: 102 points of engagement (every 3.52°) Wheel Size: 27.5" or 29" options Inner Rim Width: 30mm Outer Rim Width: 35mm Rim Height: 21.6mm Tubeless Ready: Yes, pre-taped and valve supplied Spoke Count: 32 Spoke Type: J-Bend Disc Mount: 6-Bolt Lacing Pattern: 3x Build: Hand built Single or Pair: Single Weight: 27.5” 148x12mm HG: 1093g; 27.5” 150x12mm HG: 1116g, 29” 148mm x 12mm XD: 1146g (All weights include tape & valve)Buy Nukeproof Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon V2 Rear Wheel 102t - Black - HG - 150/157mm x 12mm HG}, Black - HG
  • £219.99
  • RRP £249.99
  • Saving you £12

Nukeproof Horizon V2 Rear Wheel 102tThis MTB rear wheel features a revised design, which gives you fast and smooth-rolling performance as you shred the trails. Coming equipped with Nukeproof's extensively trailed and tested alloy blend, its rim construction is specifically made to meet the demands of both enduro and DH riders. Producing a hardness similar to 7-series alloy but with the ductility and yield properties of a 6-series, this rear wheel gives you the best of both worlds in terms of strength, stiffness and weight.Nukeproof has ensured this rear wheel's rim profile is the same as the front (sold separately), with the only difference being that the rear has a thicker sidewall for added strength on the trails. Another benefit is it comes equipped with J-bend spokes, which means that tensioning and spoke replacement is quick and easy.Enduro ABEC 5 BearingsAfter extensive testing with various brands of bearings, Nukeproof chose to use Enduro ABEC 5 bearings in this rear wheel. These bearings have the “LLU/LLB” seal type, which uses two lips that make light contact in a groove to create a labyrinth where the water or dirt has a more difficult time to penetrate. LLU seals are similar, only the contact pressure or interference fit is greater to seal better. Enduro bearings have 80% grease fill on both sides whereas most other bearings have 35% grease fill on one side. This delivers full coverage, so there are no dry areas as well as avoiding metal on metal contact or wear. This means that the axle feels tight out of the box and after a couple of rides it will become free.Nukeproof Horizon V2 HubThis MTB rear wheel features a revised Nukeproof Horizon V2 hub that now has 102 points of engagement and comes in a range of freehub options. Freehubs are also available separately and easily changeable if you choose upgrade your drivetrain in the future. Nukeproof's 142mm hub can be converted to 135mm QR and the 148mm HG / XD hub can be converted to 141mm using end caps. The hub has also been machined to remove excess material and make it as strong and light as possible. Nukeproof has fitted these hubs with our louder pawls & springs, this gives the wheel a nice buzz as you head down the trail. If you prefer the quiet life, you can get the quieter ones which are available separately. What's Included?Wheels come taped with tubeless valve installed so all you need to do is fit your tyre and add sealant. The tubeless valve supplied is the new Nukeproof Horizon valve which is compatible with Nukeproof ARD and other tyre inserts aswell as the cap having a core remover built in. A full range of spares are available to service your hub in the future. Spoke length's on Nukeproof wheels are the same regardless of spacing, the length changes with wheel size: Wheel Wheel Size Non Drive Side Spoke Length Driveside Spoke Length Rear 27.5" 271 268 Rear 29" 289 286 Conversion kits and replacement end caps available separately. Caps  Nukeproof Part Number        Replacement or Conversion Rear 135mm QR   NUKHORV2R135CAPS  Convert Non Boost 142mm hub to QR Rear 141mm  NUKHORV2R141BCAPS   Convert Boost 148mm HG / XD hub to 141mm QR (It is not possible to convert Nukeproof's 148mm microspline hubs to QR) Rear 142/148/157mm    NUKHORV2R148CAPS  Replacement caps for 142mm, 148mm and 157mm  Rear 150mm     NUKHORV2R150CAPS  Replacement 150mm caps Features: Rim Material: Alloy Nukeproof Blend Use: MTB, All Mountain, Enduro and DH Spacing Options: 142x12mm; 148x12mm and 150/157x12mm Conversion Options: 142x12mm can be converted to 135mm QR, 148x12mm HG / XD can be converted to 141mm Boost with end caps (sold separately) Freehub Options: Shimano HG, Shimano Microspline and SRAM XD Rear Hub Engagement: 102 points of engagement (every 3.52°) Wheel Size: 27.5" or 29" options Inner Rim Width: 30mm Outer Rim Width: 35mm Rim Height: 21.6mm Tubeless Ready: Yes, pre-taped and valve supplied Spoke Count: 32 Spoke Type: J-Bend Disc Mount: 6-Bolt Lacing Pattern: 3x Build: Hand built Single or Pair: Single Weight: 27.5” 148x12mm HG: 1093g; 27.5” 150x12mm HG: 1116g, 29” 148mm x 12mm XD: 1146g (All weights include tape & valve)Buy Nukeproof Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon V2 Rear Wheel 102t - Black - XD - 148mm x 12mm XD}, Black - XD
  • £219.99
  • RRP £249.99
  • Saving you £12

Nukeproof Horizon V2 Rear Wheel 102tThis MTB rear wheel features a revised design, which gives you fast and smooth-rolling performance as you shred the trails. Coming equipped with Nukeproof's extensively trailed and tested alloy blend, its rim construction is specifically made to meet the demands of both enduro and DH riders. Producing a hardness similar to 7-series alloy but with the ductility and yield properties of a 6-series, this rear wheel gives you the best of both worlds in terms of strength, stiffness and weight.Nukeproof has ensured this rear wheel's rim profile is the same as the front (sold separately), with the only difference being that the rear has a thicker sidewall for added strength on the trails. Another benefit is it comes equipped with J-bend spokes, which means that tensioning and spoke replacement is quick and easy.Enduro ABEC 5 BearingsAfter extensive testing with various brands of bearings, Nukeproof chose to use Enduro ABEC 5 bearings in this rear wheel. These bearings have the “LLU/LLB” seal type, which uses two lips that make light contact in a groove to create a labyrinth where the water or dirt has a more difficult time to penetrate. LLU seals are similar, only the contact pressure or interference fit is greater to seal better. Enduro bearings have 80% grease fill on both sides whereas most other bearings have 35% grease fill on one side. This delivers full coverage, so there are no dry areas as well as avoiding metal on metal contact or wear. This means that the axle feels tight out of the box and after a couple of rides it will become free.Nukeproof Horizon V2 HubThis MTB rear wheel features a revised Nukeproof Horizon V2 hub that now has 102 points of engagement and comes in a range of freehub options. Freehubs are also available separately and easily changeable if you choose upgrade your drivetrain in the future. Nukeproof's 142mm hub can be converted to 135mm QR and the 148mm HG / XD hub can be converted to 141mm using end caps. The hub has also been machined to remove excess material and make it as strong and light as possible. Nukeproof has fitted these hubs with our louder pawls & springs, this gives the wheel a nice buzz as you head down the trail. If you prefer the quiet life, you can get the quieter ones which are available separately. What's Included?Wheels come taped with tubeless valve installed so all you need to do is fit your tyre and add sealant. The tubeless valve supplied is the new Nukeproof Horizon valve which is compatible with Nukeproof ARD and other tyre inserts aswell as the cap having a core remover built in. A full range of spares are available to service your hub in the future. Spoke length's on Nukeproof wheels are the same regardless of spacing, the length changes with wheel size: Wheel Wheel Size Non Drive Side Spoke Length Driveside Spoke Length Rear 27.5" 271 268 Rear 29" 289 286 Conversion kits and replacement end caps available separately. Caps  Nukeproof Part Number        Replacement or Conversion Rear 135mm QR   NUKHORV2R135CAPS  Convert Non Boost 142mm hub to QR Rear 141mm  NUKHORV2R141BCAPS   Convert Boost 148mm HG / XD hub to 141mm QR (It is not possible to convert Nukeproof's 148mm microspline hubs to QR) Rear 142/148/157mm    NUKHORV2R148CAPS  Replacement caps for 142mm, 148mm and 157mm  Rear 150mm     NUKHORV2R150CAPS  Replacement 150mm caps Features: Rim Material: Alloy Nukeproof Blend Use: MTB, All Mountain, Enduro and DH Spacing Options: 142x12mm; 148x12mm and 150/157x12mm Conversion Options: 142x12mm can be converted to 135mm QR, 148x12mm HG / XD can be converted to 141mm Boost with end caps (sold separately) Freehub Options: Shimano HG, Shimano Microspline and SRAM XD Rear Hub Engagement: 102 points of engagement (every 3.52°) Wheel Size: 27.5" or 29" options Inner Rim Width: 30mm Outer Rim Width: 35mm Rim Height: 21.6mm Tubeless Ready: Yes, pre-taped and valve supplied Spoke Count: 32 Spoke Type: J-Bend Disc Mount: 6-Bolt Lacing Pattern: 3x Build: Hand built Single or Pair: Single Weight: 27.5” 148x12mm HG: 1093g; 27.5” 150x12mm HG: 1116g, 29” 148mm x 12mm XD: 1146g (All weights include tape & valve)Buy Nukeproof Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Deda Elementi Superleggero Setback Seatpost (25mm) - Polish on Black - 31.6mm, Polish on Black
  • £219.99
  • RRP £233.99
  • Saving you £6

Deda Elementi Superleggero 25mm Setback Seat PostThis stunning seat post is engineered for road use as it offers amazing reliability and strength on your road bike adventures. It features a unidirectional carbon construction which allows you to benefit from its impressive stiffness without adding any excess grams to your ride. Deda has also installed a one-bolt clamp system to this version which allows for fast and easy assembly. This makes it a highly-efficient choice of upgrade for riders who want a firm hold on every ride. Features: Material: Unidirectional CarbonUse: RoadSetback: 25mmBolt: 1-bolt clamp systemRail Compatibility: Ø7x9.5mm Oval-shaped Carbon railsDi2 Compatibility: Compatible with Deda adaptor for Di2 internal batteryWeight: 175g (approx)Buy Deda Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Deda Elementi Superleggero Setback Seatpost (25mm) - Team - 27.2mm, Team
  • £219.99
  • RRP £233.99
  • Saving you £6

Deda Elementi Superleggero 25mm Setback Seat PostThis stunning seat post is engineered for road use as it offers amazing reliability and strength on your road bike adventures. It features a unidirectional carbon construction which allows you to benefit from its impressive stiffness without adding any excess grams to your ride. Deda has also installed a one-bolt clamp system to this version which allows for fast and easy assembly. This makes it a highly-efficient choice of upgrade for riders who want a firm hold on every ride. Features: Material: Unidirectional CarbonUse: RoadSetback: 25mmBolt: 1-bolt clamp systemRail Compatibility: Ø7x9.5mm Oval-shaped Carbon railsDi2 Compatibility: Compatible with Deda adaptor for Di2 internal batteryWeight: 175g (approx)Buy Deda Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Fox Racing Union BOA Clip-In MTB Shoe - Red - EU 44}, Red
  • £219.99

Fox Racing Union BOA Clip-In MTB ShoesEnjoy brilliant comfort, outstanding durability, easy adjustment and tenacious grip, the Fox Racing Union BOA Clip-In MTB Shoes are ready for all your mountain bike trail shredding. Built ToughThe Union BOA Clip-In MTB Shoes feature a one-piece welded seamless upper. This keeps weight to a minimum and at the same time gives the shoes a snug and comfortable fit. It also makes the shoes brilliantly rugged and durable. Just what you need when taking to mountain bike trails. Meanwhile, a moulded toe-cap deflects rock strikes and other debris kicked up off the trail, giving you the confidence to barrel through any trail feature at speed. Ultratac™ GripWith Ultratac™ rubber compound, the sole unit of the UnionShoes provides fantastic grip over all terrain. It's durable too, ensuring it can take the wear and tear of mountain biking. Inside the shoes, a stiffening plate provides extra pedalling efficiency while its moulded shape keeps comfort levels high. Dual BOA® Li2 AdjustmentFast and effortless adjustment is made possible via the twin BOA® Li2 dials. These lightweight adjusters allow you to get the fit dialled just to your liking, across the whole foot. Micro-adjustment allows you to increase or decrease the pressure by a quick twist of the dials either fore or aft. The low profile and impact-resistant dial design also make them durable, exactly what's needed for the demands of mountain biking. Cleat GuidanceThese MTB shoes are compatible with MTB pedal systems, which use cleats with SPD standard (2-bolt standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB. Features:One-piece welded seamless Upper reduces weight and offers a precise fitDual BOA® Li2 system provides on-the-move micro-adjustability and improved power transfer to the pedalsMoulded Toe Cap designed to protect against rock strikesHigh and low arch support options for a custom fitMoulded internal stiffening plate optimizes power transfer and off-bike comfortUltratac™ rubber compound provides excellent durability and unprecedented grip2-bolt cleat system compatible with all major pedal suppliers (cleats not supplied)Buy Fox Racing Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Fox Racing Union BOA Clip-In MTB Shoe - Red - EU 43}, Red
  • £219.99

Fox Racing Union BOA Clip-In MTB ShoesEnjoy brilliant comfort, outstanding durability, easy adjustment and tenacious grip, the Fox Racing Union BOA Clip-In MTB Shoes are ready for all your mountain bike trail shredding. Built ToughThe Union BOA Clip-In MTB Shoes feature a one-piece welded seamless upper. This keeps weight to a minimum and at the same time gives the shoes a snug and comfortable fit. It also makes the shoes brilliantly rugged and durable. Just what you need when taking to mountain bike trails. Meanwhile, a moulded toe-cap deflects rock strikes and other debris kicked up off the trail, giving you the confidence to barrel through any trail feature at speed. Ultratac™ GripWith Ultratac™ rubber compound, the sole unit of the UnionShoes provides fantastic grip over all terrain. It's durable too, ensuring it can take the wear and tear of mountain biking. Inside the shoes, a stiffening plate provides extra pedalling efficiency while its moulded shape keeps comfort levels high. Dual BOA® Li2 AdjustmentFast and effortless adjustment is made possible via the twin BOA® Li2 dials. These lightweight adjusters allow you to get the fit dialled just to your liking, across the whole foot. Micro-adjustment allows you to increase or decrease the pressure by a quick twist of the dials either fore or aft. The low profile and impact-resistant dial design also make them durable, exactly what's needed for the demands of mountain biking. Cleat GuidanceThese MTB shoes are compatible with MTB pedal systems, which use cleats with SPD standard (2-bolt standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB. Features:One-piece welded seamless Upper reduces weight and offers a precise fitDual BOA® Li2 system provides on-the-move micro-adjustability and improved power transfer to the pedalsMoulded Toe Cap designed to protect against rock strikesHigh and low arch support options for a custom fitMoulded internal stiffening plate optimizes power transfer and off-bike comfortUltratac™ rubber compound provides excellent durability and unprecedented grip2-bolt cleat system compatible with all major pedal suppliers (cleats not supplied)Buy Fox Racing Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Fox Racing Union BOA Clip-In MTB Shoe - Black - EU 43}, Black
  • £219.99

Fox Racing Union BOA Clip-In MTB ShoesEnjoy brilliant comfort, outstanding durability, easy adjustment and tenacious grip, the Fox Racing Union BOA Clip-In MTB Shoes are ready for all your mountain bike trail shredding. Built ToughThe Union BOA Clip-In MTB Shoes feature a one-piece welded seamless upper. This keeps weight to a minimum and at the same time gives the shoes a snug and comfortable fit. It also makes the shoes brilliantly rugged and durable. Just what you need when taking to mountain bike trails. Meanwhile, a moulded toe-cap deflects rock strikes and other debris kicked up off the trail, giving you the confidence to barrel through any trail feature at speed. Ultratac™ GripWith Ultratac™ rubber compound, the sole unit of the UnionShoes provides fantastic grip over all terrain. It's durable too, ensuring it can take the wear and tear of mountain biking. Inside the shoes, a stiffening plate provides extra pedalling efficiency while its moulded shape keeps comfort levels high. Dual BOA® Li2 AdjustmentFast and effortless adjustment is made possible via the twin BOA® Li2 dials. These lightweight adjusters allow you to get the fit dialled just to your liking, across the whole foot. Micro-adjustment allows you to increase or decrease the pressure by a quick twist of the dials either fore or aft. The low profile and impact-resistant dial design also make them durable, exactly what's needed for the demands of mountain biking. Cleat GuidanceThese MTB shoes are compatible with MTB pedal systems, which use cleats with SPD standard (2-bolt standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB. Features:One-piece welded seamless Upper reduces weight and offers a precise fitDual BOA® Li2 system provides on-the-move micro-adjustability and improved power transfer to the pedalsMoulded Toe Cap designed to protect against rock strikesHigh and low arch support options for a custom fitMoulded internal stiffening plate optimizes power transfer and off-bike comfortUltratac™ rubber compound provides excellent durability and unprecedented grip2-bolt cleat system compatible with all major pedal suppliers (cleats not supplied)Buy Fox Racing Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Fox Racing Union BOA Clip-In MTB Shoe - Black - EU 44}, Black
  • £219.99

Fox Racing Union BOA Clip-In MTB ShoesEnjoy brilliant comfort, outstanding durability, easy adjustment and tenacious grip, the Fox Racing Union BOA Clip-In MTB Shoes are ready for all your mountain bike trail shredding. Built ToughThe Union BOA Clip-In MTB Shoes feature a one-piece welded seamless upper. This keeps weight to a minimum and at the same time gives the shoes a snug and comfortable fit. It also makes the shoes brilliantly rugged and durable. Just what you need when taking to mountain bike trails. Meanwhile, a moulded toe-cap deflects rock strikes and other debris kicked up off the trail, giving you the confidence to barrel through any trail feature at speed. Ultratac™ GripWith Ultratac™ rubber compound, the sole unit of the UnionShoes provides fantastic grip over all terrain. It's durable too, ensuring it can take the wear and tear of mountain biking. Inside the shoes, a stiffening plate provides extra pedalling efficiency while its moulded shape keeps comfort levels high. Dual BOA® Li2 AdjustmentFast and effortless adjustment is made possible via the twin BOA® Li2 dials. These lightweight adjusters allow you to get the fit dialled just to your liking, across the whole foot. Micro-adjustment allows you to increase or decrease the pressure by a quick twist of the dials either fore or aft. The low profile and impact-resistant dial design also make them durable, exactly what's needed for the demands of mountain biking. Cleat GuidanceThese MTB shoes are compatible with MTB pedal systems, which use cleats with SPD standard (2-bolt standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB. Features:One-piece welded seamless Upper reduces weight and offers a precise fitDual BOA® Li2 system provides on-the-move micro-adjustability and improved power transfer to the pedalsMoulded Toe Cap designed to protect against rock strikesHigh and low arch support options for a custom fitMoulded internal stiffening plate optimizes power transfer and off-bike comfortUltratac™ rubber compound provides excellent durability and unprecedented grip2-bolt cleat system compatible with all major pedal suppliers (cleats not supplied)Buy Fox Racing Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Fox Racing Union BOA Clip-In MTB Shoe - Black - EU 45}, Black
  • £219.99

Fox Racing Union BOA Clip-In MTB ShoesEnjoy brilliant comfort, outstanding durability, easy adjustment and tenacious grip, the Fox Racing Union BOA Clip-In MTB Shoes are ready for all your mountain bike trail shredding. Built ToughThe Union BOA Clip-In MTB Shoes feature a one-piece welded seamless upper. This keeps weight to a minimum and at the same time gives the shoes a snug and comfortable fit. It also makes the shoes brilliantly rugged and durable. Just what you need when taking to mountain bike trails. Meanwhile, a moulded toe-cap deflects rock strikes and other debris kicked up off the trail, giving you the confidence to barrel through any trail feature at speed. Ultratac™ GripWith Ultratac™ rubber compound, the sole unit of the UnionShoes provides fantastic grip over all terrain. It's durable too, ensuring it can take the wear and tear of mountain biking. Inside the shoes, a stiffening plate provides extra pedalling efficiency while its moulded shape keeps comfort levels high. Dual BOA® Li2 AdjustmentFast and effortless adjustment is made possible via the twin BOA® Li2 dials. These lightweight adjusters allow you to get the fit dialled just to your liking, across the whole foot. Micro-adjustment allows you to increase or decrease the pressure by a quick twist of the dials either fore or aft. The low profile and impact-resistant dial design also make them durable, exactly what's needed for the demands of mountain biking. Cleat GuidanceThese MTB shoes are compatible with MTB pedal systems, which use cleats with SPD standard (2-bolt standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB. Features:One-piece welded seamless Upper reduces weight and offers a precise fitDual BOA® Li2 system provides on-the-move micro-adjustability and improved power transfer to the pedalsMoulded Toe Cap designed to protect against rock strikesHigh and low arch support options for a custom fitMoulded internal stiffening plate optimizes power transfer and off-bike comfortUltratac™ rubber compound provides excellent durability and unprecedented grip2-bolt cleat system compatible with all major pedal suppliers (cleats not supplied)Buy Fox Racing Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Fox Racing Union BOA Clip-In MTB Shoe - Grey - EU 43}, Grey
  • £219.99

Fox Racing Union BOA Clip-In MTB ShoesEnjoy brilliant comfort, outstanding durability, easy adjustment and tenacious grip, the Fox Racing Union BOA Clip-In MTB Shoes are ready for all your mountain bike trail shredding. Built ToughThe Union BOA Clip-In MTB Shoes feature a one-piece welded seamless upper. This keeps weight to a minimum and at the same time gives the shoes a snug and comfortable fit. It also makes the shoes brilliantly rugged and durable. Just what you need when taking to mountain bike trails. Meanwhile, a moulded toe-cap deflects rock strikes and other debris kicked up off the trail, giving you the confidence to barrel through any trail feature at speed. Ultratac™ GripWith Ultratac™ rubber compound, the sole unit of the UnionShoes provides fantastic grip over all terrain. It's durable too, ensuring it can take the wear and tear of mountain biking. Inside the shoes, a stiffening plate provides extra pedalling efficiency while its moulded shape keeps comfort levels high. Dual BOA® Li2 AdjustmentFast and effortless adjustment is made possible via the twin BOA® Li2 dials. These lightweight adjusters allow you to get the fit dialled just to your liking, across the whole foot. Micro-adjustment allows you to increase or decrease the pressure by a quick twist of the dials either fore or aft. The low profile and impact-resistant dial design also make them durable, exactly what's needed for the demands of mountain biking. Cleat GuidanceThese MTB shoes are compatible with MTB pedal systems, which use cleats with SPD standard (2-bolt standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB. Features:One-piece welded seamless Upper reduces weight and offers a precise fitDual BOA® Li2 system provides on-the-move micro-adjustability and improved power transfer to the pedalsMoulded Toe Cap designed to protect against rock strikesHigh and low arch support options for a custom fitMoulded internal stiffening plate optimizes power transfer and off-bike comfortUltratac™ rubber compound provides excellent durability and unprecedented grip2-bolt cleat system compatible with all major pedal suppliers (cleats not supplied)Buy Fox Racing Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.

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