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Shimano Tiagra 4720 2x10 Speed Shifter Gear Levers
  • £154.99

Enjoy better comfort and control in all conditions thanks to its reach adjust mechanism allowing you to customise it to suit your hand size, riding style and individual preferences. Its redesigned internal shifting unit makes shifting easy, so you'll benefit from smooth and effortless operation as you ride out on the road. Fast, precise and lightweight, this is a perfect choice of upgrade for taking your road cycling performance up a notch. Technologies: Shimano Index System: Every Shimano equipped multi-gear bicycle includes Shimano S.I.S - Shimano Indexed Shifting. It's the technology behind that "click" you hear and feel every time you shift through your gears. That "click" captures the light, precise, and consistent shifting bikes equipped with Shimano deliver. It's the sound of perfect gear changes, of levers directing derailleurs in harmony and the feeling that resonates into your hand, letting you know that your commands are being answered. Reach Adjust: Its brake lever is equipped with a reach adjust mechanism. The distance from handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences.

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Shimano Tiagra 4720 2x10 Speed Road Gear Shifter - Black - Right Hand}, Black
  • £154.99

Shimano Tiagra 4720 2x10 Speed Road Gear ShifterThis solid shifter offers excellent entry-level riding performance with trickle-down technologies from Shimano's top-tier lines. Using its reach adjust mechanism you can customise it to suit your hand size, riding style and individual preferences, for better comfort and control in all conditions. Its smooth and effortless operation makes shifting easy, thanks to its redesigned internal shifting unit. What's most impressive, is this model delivers the same level of shifting actuation as the high-end Dura Ace series at an affordable price. Features: Use: Road Speed: 10 speed Recommended Brake Caliper: BR-4770 Reach Adjust: Tooled Type: Dual control lever Oil: Mineral oilTechnologies:Shimano Index System: Every Shimano equipped multi-gear bicycle includes Shimano S.I.S - Shimano Indexed Shifting. It's the technology behind that "click" you hear and feel every time you shift through your gears. That "click" captures the light, precise, and consistent shifting bikes equipped with Shimano deliver. It's the sound of perfect gear changes, of levers directing derailleurs in harmony and the feeling that resonates into your hand, letting you know that your commands are being answered.Reach Adjust: Its brake lever is equipped with a reach adjust mechanism. The distance from handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences.A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Tiagra 4720 2x10 Speed Road Gear Shifter - Black - Left Hand}, Black
  • £154.99

Shimano Tiagra 4720 2x10 Speed Road Gear ShifterThis solid shifter offers excellent entry-level riding performance with trickle-down technologies from Shimano's top-tier lines. Using its reach adjust mechanism you can customise it to suit your hand size, riding style and individual preferences, for better comfort and control in all conditions. Its smooth and effortless operation makes shifting easy, thanks to its redesigned internal shifting unit. What's most impressive, is this model delivers the same level of shifting actuation as the high-end Dura Ace series at an affordable price. Features: Use: Road Speed: 10 speed Recommended Brake Caliper: BR-4770 Reach Adjust: Tooled Type: Dual control lever Oil: Mineral oilTechnologies:Shimano Index System: Every Shimano equipped multi-gear bicycle includes Shimano S.I.S - Shimano Indexed Shifting. It's the technology behind that "click" you hear and feel every time you shift through your gears. That "click" captures the light, precise, and consistent shifting bikes equipped with Shimano deliver. It's the sound of perfect gear changes, of levers directing derailleurs in harmony and the feeling that resonates into your hand, letting you know that your commands are being answered.Reach Adjust: Its brake lever is equipped with a reach adjust mechanism. The distance from handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences.A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Dura-Ace 7900 10 Speed Road Cassette - Silver - 12-27t}, Silver
  • £154.99
  • RRP £199.99
  • Saving you £23

Shimano Dura-Ace 7900 10 Speed Road CassetteThis Dura-Ace 10-speed cassette is typically lightweight and designed for maximum performance. Featuring four titanium cogs, the new Dura-Ace 7900 cogset has further improved shifting quality by creating a more rigid aluminium carrier unit along with a re-engineered tooth profile. The Shimano Dura-Ace 7900 10-Speed Road Cassette shaves 10 grams from the previous model without sacrificing strength; the close gear ratios allow effective and efficient cadence control.Features:Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under loadClose ratio gearing allows a more efficient use of energy through finer cadence controlLargest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigidity4 largest sprockets are made from titanium to reduce weight without sacrificing strengthSprockets are extensively cut away and drilled to further reduce weight without reducing rigidityNickel-plated finish offers hard wearing resistance to corrosionAlloy cassette lockringSpecifications:Sprocket Carrier: AlloyNumber of Sprockets: 10-speedSprocket Material: Steel/TitaniumChain Compatibility: Super Narrow HG for 10-speedWeight: 163g (11-23T)Cassette Gearing:11-21T: 11-12-13-14-15-16-17-18-19-2111-23T: 11-12-13-14-15-16-17-19-21-2311-25T: 11-12-13-14-15-17-19-21-23-2511-27T: 11-12-13-14-15-17-19-21-24-2711-28T: 11-12-13-14-15-17-19-21-24-2812-23T: 12-13-14-15-16-17-18-19-21-2312-25T: 12-13-14-15-16-17-19-21-23-2512-27T: 12-13-14-15-16-17-19-21-24-27A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano XT M8000 Double 11 Speed Chainset - Black - 48.8mm Chainline, Black
  • £155.00
  • RRP £209.99
  • Saving you £26

Shimano XT M8000 Double 11 Speed ChainsetSuitable for all types of mountain bike (MTB) riding, the XT M8000 2x11-speed chainset brings you the range for thriving on all terrains and in all riding situations. Available in different tooth count ratios with lower differences between the chainrings, you'll be able to maintain your pedalling rhythm, making it ideal for your cross country (XC) racing bike. Offering you the perfect mix of low weight and high strength, Shimano has built it with aluminium crank arms, a tough steel axle and the chainrings are made with steel teeth on a carbon fibre composite carrier body. Plus, the chainring’s teeth have been shaped to enhance chain retention as you attack the roughest sections of the trails.Features: Material: Crank Arms: Aluminium; Axle: Steel; Chainrings: Steel teeth with Carbon Fibre Composite carrier body Axle Diameter: 24mm (For Hollowtech II systems) Speed: 2x11-Speed 4-Arm or 5-Arm: 4-Arm Bolt Circle Diameter (BCD): 4x96/64mm Recommended Bottom Bracket: BB-MT800/BB-MT800-PA Hollowtech II (Not included) Bottom Bracket Included: No Chainring Size: Separate 38/28T, 36/26T and 34/24T options Chainrings Included: Yes Bottom Bracket Shell Width: 68 or 73mm Chainline: 48.8mm Q-Factor: 176mm Manufacturer's Part Number: FC-M8000-2 Weight: 38/28T: 738.9g; 36/26T: 718.1g; 34/24T: 695.5gA 2 year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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SRAM EX1 8 Speed Rear Derailleur - Black, Black
  • £155.00
  • RRP £164.00
  • Saving you £5

SRAM EX1 8 Speed Rear DerailleurSRAM's EX1 8 Speed Rear Mech is a World first, as it's the first rear mech that's specifically designed for E-MTB's. It adopts shift technologies from SRAM's top of the line XX1 and X01 models for the ultimate in quick and accurate shifting and reliable chain retention. It's also been specifically engineered to cope with the extra torque that is generated as you shift through your E-MTB's power assisted drivetrain.Features: Material: Aluminium Cage Speed: 8-Speed Compatibility: SRAM EX1 Max Tooth: 48 Pulleys: X-Sync Pull: X-Actuation Technology Highlights: Cage Lock, Roller Bearing Clutch, X-Actuation, X-Horizon, X-Sync Weight: 289g Technologies: Cage Lock: With Cage Lock technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just push the cage forward to create slack and lock it into place Roller Bearing Clutch: SRAM's Roller Bearing Clutch rear derailleurs deliver maximum drivetrain stability, even through the most punishing terrain. With Roller Bearing Clutch technology, derailleur bounce and chain slap are eliminated without sacrificing precision X-Actuation: Developed specifically for SRAM 1x, X-Actuation keeps shifting sharp and consistent across the entyre cassette. X-Horizon: The X-Horizon rear derailleur's ‘straight parallelogram' design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gears X-Sync: SRAM's X-sync pulleys and chainrings tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, helps manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC chain rings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC rings are an integral part of the SRAM 1x drivetrainBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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SRAM EX1 8 Speed Rear Mech Rear Derailleurs
  • £155.00
  • RRP £164.00
  • Saving you £5

The EX1 also benefits from many of the same technologies that are seen on SRAM’s top-end XX1 X01 mechs. This means it gives you lightning quick, accurate shifting and highly efficient chain retention. Technologies: Cage Lock™: With Cage Lock™ technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just push the cage forward to create slack and lock it into place. Roller Bearing Clutch™: SRAM's Roller Bearing Clutch™ rear derailleurs deliver maximum drivetrain stability, even through the most punishing terrain. With Roller Bearing Clutch™ technology, derailleur bounce and chain slap are eliminated without sacrificing precision. X-Actuation™: Developed specifically for SRAM 1x™, X-Actuation™ keeps shifting sharp and consistent across the entire cassette. X-Horizon™: The X-Horizon™ rear derailleur's ‘straight parallelogram' design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gears. X-Sync™: SRAM's X-sync™ pulleys and chainrings tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, helps manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC™ chainrings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC™ rings are an integral part of the SRAM 1x™ drivetrain.

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Box Four 8 Speed MTB Drivetrain Groupset - Black - Multi Shift, Black
  • £155.00

Box Four 8 Speed Drivetrain GroupsetReady for blasting across the MTB trails, this 8 speed groupset delivers smooth and reliable performance on every mountain bike ride. It is designed for riders who want less fuss and features an 8 speed shifter and an 11-42T cassette, which offers a great range of gearing to meet the demands of your off-road adventures. Designed for smooth operation, its rear mech uses a Limited Slip clutch in a compact cage. A final highlight is its custom 8 speed chain that's built for abuse. This makes it a great groupset for riders that want strong groupset without all the frills and at a wallet-friendly price.Box Four 8 Speed ShifterThe Box Four shifter's main features aren't strikingly different from Box Three's. The key difference is its 8-speed platform. We've chosen to modernize the 8-speed in much the same way we did the 9-speed for Prime 9. Just like the Prime 9, the Box Four shifters take advantage of the "less is more" theme and exploit durability, simplicity, and reliability.Features: Material: Glass Fibre / Nylon Composite, Steel Extruded Clamp 2 Piece Pull Lever / Up to 3 Gears Per Shift Resin Top Shell Fast Action Release Lever Not Intended for E-Bike Use Weight: 128gBox Four 8 Speed Wide Rear Derailleur BlackThe Box Four Rear Derailleur is the base of Prime 9 Technology that offers an affordable clutch based 1 by 8-speed derailleur that is simple and light; this makes it a perfect candidate for every entry-level bike that traditionally has a 3 by drive-train that is neither durable nor user friendly.Features: Material: Aluminium, Glass Fibre / Nylon Composite, Steel Limited Slip Clutch Bearing Pulleys Nylon Composite Knuckle Direct Channel Cable Stay Die-Cast Linkages Stamped Inner and Outer Cage Compatible with Standard Derailleur Hangers (Non Direct-Mount) Weight: 328gBox Four 8 Speed 11-42T CassetteThe Box Four cassette adapts our Prime 9 philosophy of durability, simplicity, and reliability at a great price point. All cogs are stamped from steel, given our durable black coating and then the larger cogs are pinned to each other with spacers for easy installation.Features: Material Cold Rolled Steel Steel Stamped Cogs No Spiders Wide Ratio & Consistent Progression ED Black Protection Compatible with HG Freehub Bodies Not Intended for E-Bike Use Weight: 473gBox Four 8 Speed 116 Link Chain NaturalThe Box Four chain employs an 8-speed platform in a similar strategy to the Prime 9 but at a great price point. The chain is polished and then chemically treated to achieve corrosion resistance. We engineered the inner link spacing to be a little tighter than other 8-speed chains and is optimized for use with our Box Four Wide/Narrow Chainring.Features: Material: Hardened Alloy Steel Durable Hardened Solid Pins Wide/Narrow 8 speed Specific Weight: 364gBuy Box Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Box Four 8 Speed MTB Drivetrain Groupset - Black - Single Shift, Black
  • £155.00

Box Four 8 Speed Drivetrain GroupsetReady for blasting across the MTB trails, this 8 speed groupset delivers smooth and reliable performance on every mountain bike ride. It is designed for riders who want less fuss and features an 8 speed shifter and an 11-42T cassette, which offers a great range of gearing to meet the demands of your off-road adventures. Designed for smooth operation, its rear mech uses a Limited Slip clutch in a compact cage. A final highlight is its custom 8 speed chain that's built for abuse. This makes it a great groupset for riders that want strong groupset without all the frills and at a wallet-friendly price.Box Four 8 Speed ShifterThe Box Four shifter's main features aren't strikingly different from Box Three's. The key difference is its 8-speed platform. We've chosen to modernize the 8-speed in much the same way we did the 9-speed for Prime 9. Just like the Prime 9, the Box Four shifters take advantage of the "less is more" theme and exploit durability, simplicity, and reliability.Features: Material: Glass Fibre / Nylon Composite, Steel Extruded Clamp 2 Piece Pull Lever / Up to 3 Gears Per Shift Resin Top Shell Fast Action Release Lever Not Intended for E-Bike Use Weight: 128gBox Four 8 Speed Wide Rear Derailleur BlackThe Box Four Rear Derailleur is the base of Prime 9 Technology that offers an affordable clutch based 1 by 8-speed derailleur that is simple and light; this makes it a perfect candidate for every entry-level bike that traditionally has a 3 by drive-train that is neither durable nor user friendly.Features: Material: Aluminium, Glass Fibre / Nylon Composite, Steel Limited Slip Clutch Bearing Pulleys Nylon Composite Knuckle Direct Channel Cable Stay Die-Cast Linkages Stamped Inner and Outer Cage Compatible with Standard Derailleur Hangers (Non Direct-Mount) Weight: 328gBox Four 8 Speed 11-42T CassetteThe Box Four cassette adapts our Prime 9 philosophy of durability, simplicity, and reliability at a great price point. All cogs are stamped from steel, given our durable black coating and then the larger cogs are pinned to each other with spacers for easy installation.Features: Material Cold Rolled Steel Steel Stamped Cogs No Spiders Wide Ratio & Consistent Progression ED Black Protection Compatible with HG Freehub Bodies Not Intended for E-Bike Use Weight: 473gBox Four 8 Speed 116 Link Chain NaturalThe Box Four chain employs an 8-speed platform in a similar strategy to the Prime 9 but at a great price point. The chain is polished and then chemically treated to achieve corrosion resistance. We engineered the inner link spacing to be a little tighter than other 8-speed chains and is optimized for use with our Box Four Wide/Narrow Chainring.Features: Material: Hardened Alloy Steel Durable Hardened Solid Pins Wide/Narrow 8 speed Specific Weight: 364gBuy Box Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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SRAM XX1 Eagle Grip Shift - 12 Speed
  • £155.00

Three decades ago, SRAM was founded on a product called Grip Shift and an idea that shifting a bike should be easier, better and more intuitive. It’s more advanced than the original, but the all-new XX1 Eagle™ Grip Shift follows in the same tradition of making shifting easier, better and more intuitive. The new XX1 Eagle™ Grip Shift system includes new, robust internals that make it more durable and its’ shifting performance more precise. But just like the original, it is total control in the palm of your hand. New Grip Shift mechanism takes SRAM’s original invention to an increased level of precision and durability., Better feel and added toughness, Lightweight carbon cover, .

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SRAM Eagle AXS 12 Speed Shifter With Discrete Clamp
  • £155.00
  • RRP £194.00
  • Saving you £20

It s simple. It s about performance. The pure shifting performance of Eagle AXS is the real difference maker. Shift under load, over the roughest terrain, uphill, without changing your grip on the bar. Eagle AXS changes your level of control on the bike when you re under pressure and pushing hard into the red. But more than that, it changes your relationship with the bike. No cable, housing or wires to manage opened up design and engineering possibilities with the Eagle AXS controller. Helping us pioneer a completely new shifting experience with new ergonomic touchpoints that take just enough effort to press. Touchpoints that are totally customizable to your preferences, allowing you to choose which button does what through the AXS App.Compatible with MatchMaker XEagle technologyCustomise in-board and outboard shift optionsPairs with both XX1 and X01 Eagle AXS derailleursAXS enabled componentry software that makes it possible to both program and personalize new SRAM and RockShox componentsSystem is completely water and dust proof to IP69KDefault Function: AXS - Rear DerailleurOrientation: RightControl Points: DoubleClamp: DiscreteCompatible with ANT+ devices: YesLever adjust: NoMulti-position: Yes

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Box Four 8 Speed Drivetrain Groupset Groupsets
  • £155.00

The Box Four groupset is designed for riders who want less fuss. It features an 8 speed shifter and an 11-42T cassette, which offers a great range of gearing to meet the demands of your off-road adventures. Designed for smooth performance, its rear mech uses a Limited Slip clutch in a compact cage. A final highlight is its custom 8 speed chain that's built for abuse. This makes it a great groupset for riders that want strong groupset without all the frills and at a wallet-friendly price. Box Four 8 Speed Shifter The Box Four shifter's main features aren't strikingly different from Box Three's. The key difference is its 8-speed platform. We've chosen to modernize the 8-speed in much the same way we did the 9-speed for Prime 9. Just like the Prime 9, the Box Four shifters take advantage of the "less is more" theme and exploit durability, simplicity, and reliability. Features: Material: Glass Fiber / Nylon Composite, Steel Extruded Clamp 2 Piece Pull Lever / Up to 3 Gears Per Shift Resin Top Shell Fast Action Release Lever Not Intended for E-Bike Use Weight: 128g Box Four 8 Speed Wide Rear Derailleur Black The Box Four Rear Derailleur is the base of Prime 9 Technology that offers an affordable clutch based 1 by 8-speed derailleur that is simple and light; this makes it a perfect candidate for every entry-level bike that traditionally has a 3 by drive-train that is neither durable nor user friendly. Features: Material: Aluminum, Glass Fiber / Nylon Composite, Steel Limited Slip Clutch Bearing Pulleys Nylon Composite Knuckle Direct Channel Cable Stay Die-Cast Linkages Stamped Inner and Outer Cage Compatible with Standard Derailleur Hangers (Non Direct-Mount) Weight: 328g Box Four 8 Speed 11-42T Cassette The Box Four cassette adapts our Prime 9 philosophy of durability, simplicity, and reliability at a great price point. All cogs are stamped from steel, given our durable black coating and then the larger cogs are pinned to each other with spacers for easy installation. Features: Material Cold Rolled Steel Steel Stamped Cogs No Spiders Wide Ratio & Consistent Progression ED Black Protection Compatible with HG Freehub Bodies Not Intended for E-Bike Use Weight: 473g Box Four 8 Speed 116 Link Chain Natural The Box Four chain employs an 8-speed platform in a similar strategy to the Prime 9 but at a great price point. The chain is polished and then chemically treated to achieve corrosion resistance. We engineered the inner link spacing to be a little tighter than other 8-speed chains and is optimized for use with our Box Four Wide/Narrow Chainring. Features: Material: Hardened Alloy Steel Durable Hardened Solid Pins Wide/Narrow 8 speed Specific Weight: 364  

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