Chain Reaction UK

Chain Reaction UK Rating
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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 421 different brands listed for Chain Reaction UK in our database

Number of Products Listed for Chain Reaction UK

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

SureShift M315 Mountain Bike Gear Shifter Extender - Yellow - M315}, Yellow
  • £13.99
  • RRP £15.00
  • Saving you £7

SureShift M315 Mountain Bike Gear Shifter ExtenderWith a range of colour options available and a larger contact point, this extender is a great upgrade for riders who want to simplify the gear shifting process on their Shimano M315 shifter. Providing increased control, comfort and confidence, this clever extender is specifically designed to make the process of changing gears easier on your Shimano M315 shifter. Easy to Use Gear Shifter ExtenderSimply slot the extender over the existing shifter thumb lever and enjoy the benefits of a larger contact point. Perfect for adults as well as kids with smaller hands that often find it difficult to change gear, this model reduces tension, increases the contact point and also shortens the lever arc. With gear changing simplified, it means that more challenging terrain can be tackled, miles eaten and speed controlled. One final highlight is it's available in a range of bright colour options to complement any bike while allowing the rider to focus on the trail ahead.Features: Use: MTB Compatibility: Shimano M315 gear shifters Single or Pair: SingleManufacturer's Part Numbers: SSM315BLU Blue SSM315GRN Green SSM315ORG Orange SSM315PNK Pink SSM315PUR Purple SSM315YEL YellowBuy SureShift Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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SureShift M315 Mountain Bike Gear Shifter Extender - Orange - M315}, Orange
  • £13.99
  • RRP £15.00
  • Saving you £7

SureShift M315 Mountain Bike Gear Shifter ExtenderWith a range of colour options available and a larger contact point, this extender is a great upgrade for riders who want to simplify the gear shifting process on their Shimano M315 shifter. Providing increased control, comfort and confidence, this clever extender is specifically designed to make the process of changing gears easier on your Shimano M315 shifter. Easy to Use Gear Shifter ExtenderSimply slot the extender over the existing shifter thumb lever and enjoy the benefits of a larger contact point. Perfect for adults as well as kids with smaller hands that often find it difficult to change gear, this model reduces tension, increases the contact point and also shortens the lever arc. With gear changing simplified, it means that more challenging terrain can be tackled, miles eaten and speed controlled. One final highlight is it's available in a range of bright colour options to complement any bike while allowing the rider to focus on the trail ahead.Features: Use: MTB Compatibility: Shimano M315 gear shifters Single or Pair: SingleManufacturer's Part Numbers: SSM315BLU Blue SSM315GRN Green SSM315ORG Orange SSM315PNK Pink SSM315PUR Purple SSM315YEL YellowBuy SureShift Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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SureShift M315 Mountain Bike Gear Shifter Extender - Purple - M315}, Purple
  • £13.99
  • RRP £15.00
  • Saving you £7

SureShift M315 Mountain Bike Gear Shifter ExtenderWith a range of colour options available and a larger contact point, this extender is a great upgrade for riders who want to simplify the gear shifting process on their Shimano M315 shifter. Providing increased control, comfort and confidence, this clever extender is specifically designed to make the process of changing gears easier on your Shimano M315 shifter. Easy to Use Gear Shifter ExtenderSimply slot the extender over the existing shifter thumb lever and enjoy the benefits of a larger contact point. Perfect for adults as well as kids with smaller hands that often find it difficult to change gear, this model reduces tension, increases the contact point and also shortens the lever arc. With gear changing simplified, it means that more challenging terrain can be tackled, miles eaten and speed controlled. One final highlight is it's available in a range of bright colour options to complement any bike while allowing the rider to focus on the trail ahead.Features: Use: MTB Compatibility: Shimano M315 gear shifters Single or Pair: SingleManufacturer's Part Numbers: SSM315BLU Blue SSM315GRN Green SSM315ORG Orange SSM315PNK Pink SSM315PUR Purple SSM315YEL YellowBuy SureShift Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Most Xylon Carbon Team Edition Handlebar - Black - 31.8mm, Black
  • £13.99
  • RRP £42.14
  • Saving you £67

Most Xylon Carbon Team Edition HandlebarWhether you're training or competing, this race-ready road bike drop handlebar features a tough aluminium build that's blended with carbon to achieve a superior strength to weight ratio. As a result, you'll benefit from its rock-solid construction on every mile without adding any unnecessary excess grams to your road bike. Coming complete with an eye-catching Team Edition finish to complement your ride, this is a great choice of upgrade for smooth and dependable steering as you clock up the miles.Features: Material: Aluminium and Carbon blend Use: Road Clamp Diameter: 31.8mm Weight: 305gManufacturer's Part Numbers: 84912318 Black 44cm 84912320 Black 46cmBuy Most Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Sportourer Kaalam Gel E-Bike Saddle - Black, Black
  • £13.99
  • RRP £29.99
  • Saving you £53

Sportourer Kaalam Gel E-Bike SaddleWide, supportive and E-Bike (electric bike) specific, this version of the Kaalam city bike saddle will help you to remain comfortable on your daily commute or long-distance touring rides. With its foam padding, central relief channel and gel inserts, it prevents any pressure build up on sensitive areas. Also, to increase riding comfort, Sportourer has added an elastomer suspension system. This helps to soak up vibrations when you’re riding on poor road surfaces or mixed terrain types.High-Visibility SaddleIn addition to the excellent riding comfort features, the Kaalam also has a dropped nose, which aids easier on and off transitions. Plus, to keep you safer at nighttime, there are reflective sections at the saddle’s edges, making you more visible from all directions. Features: Cover Material: Matt black soft touch Synthetic Padding Type: Foam base with gel inserts Rail Material: FeC Steel/Alloy Shell/Base Material: Plastic Rail Size: Standard round 7x7mm Use: Urban, Touring, E-Bike Size: 267x210mm (LxW) Comfortable unisex city and touring saddle Soft relief channel Hi-Viz reflector system Integrated elastomers form a suspension system Weight: 478gBuy Sportourer Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Brand-X Inline Seatpost - Black - 31.6mm, Black
  • £13.99
  • RRP £16.99
  • Saving you £18

Brand-X Inline SeatpostThis lightweight aluminium Inline Seatpost from Brand-X is manufactured for strength, stiffness and durability. Featuring a 2D forged head and clamp, this aluminium Seatpost comes with a micro-adjustable 2-bolt design, which makes fitting a new saddle or adjusting the angle as easy as possible.Stealth FinishThis light and strong Brand-X Inline 6061 Seatpost has a black anodised finish for an understated and stealthy appearance. The incremental markings will help you set your saddle height easily.Features:Material: 6061-T6 AluminiumLength: 400mmLayback: 0mmFinish: Turned and Anodised shaft/Anodised headIncremental height markingsEN-M ApprovedUse: Road/MTBWeight: 308g (31.6mm)Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Kool Stop D330T SRAM Aero Pro Road Disc Brake Pads - Black - Sintered}, Black
  • £13.99
  • RRP £19.99
  • Saving you £30

Kool Stop D330T SRAM Aero Pro Road Disc Brake PadsThis superb brake pad set is specifically designed for use with Formula Mega, The One, C1, R1, RX, RO, T1 and CR3 disc brakes disc brakes. Additionally, its superior braking power makes this model the perfect choice of replacement for your old or worn out existing pads.Features: Compatibility: Formula Mega, The One, C1, R1, RX, RO, T1 and CR3 disc brakes Pad Type: SinteredBuy Kool Stop Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Hope Disc Brake Mount Adapters - Black - Front 183mm, Black
  • £13.99
  • RRP £17.50
  • Saving you £20

Hope Disc Brake Mount AdaptersReplacement Hope disc brake adaptor, with multiple options allowing you to convert either Post mount, IS mount or Flat mount brakes to suit different size rotors.Please note: Bolts can be black or silverMaterial: AluminiumBrake Type: disc BrakeNote: PM – Post Mount, IS – International Standard Mount, FM – Flat Mount

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Bleed Kit Basic Shimano Disc Brake Bleed Kit 2021 - Multi - Shimano MTB 2012}, Multi
  • £13.99

Bleed Kit Basic Shimano Disc Brake Bleed KitSpecifically designed for use with Shimano hydraulic disc brakes, this Basic edition bleed kit includes bare essentials for bleeding flat bar Shimano hydraulic brakes. Oil and bleed block not included.CompatibilityThis kit is compatible with all Shimano flat bar hydraulic brakes (XTR, XT, Saint, Zee, SLX, Deore, Alivio, Acera, Alfine, Metrea). Not compatible with Shimano drop bar hydraulic brakes (DURA-ACE, ULTEGRA, 105, Tiagra, GRX) which require an adapter and smaller bleed block available in Premium Road and Workshop kits.Features: Lever end 30 ml transparent funnel (syringe body) with brass M5 thread Threaded stainless steel plug (oil stopper) with hanger Caliper end 20ml syringe with a long-lasting tube Stainless steel tube insert providing a guided fitment between the tube and the bleed nipple Clamp for easier gravity bleed Spare O-ringManufacturer's Part Number: BK-28005 Shimano MTB 2012+Buy Bleed Kit Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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NS Bikes Hold Fast Mountain Bike Handlebar Grips - Green - Black, Green - Black
  • £13.99
  • RRP £24.99
  • Saving you £44

NS Bikes Hold Fast Mountain Bike Handlebar GripsAdopting a super soft rubber with a gummy feel for outstanding grip in all conditions, the Hold Fast grips will ensure you can thrash down the descents, dive into the berms and always pick your line with precision. Their extra-long length of 148mm allows you to adopt multiple hand positions and keep your thumb away from the inner clamp. The clamps also have a unique asymmetric design, which tapers towards its middle for a more secure hold on your bars. If you’re looking for a set of mountain bike grips you can reply on, you’ve just found them.Features: Material: Super soft Rubber compound with gummy feel, one clamp design Length: 148mm Outer Diameter: 31mm Barends: Integrated hard plastic reinforced barend One clamp lock-on racing grips from NS Designed for all applications The longest single clamp grips on the planet Lightweight and super strong honeycomb pattern Reasonably thin - they feel great with or without gloves Single inboard clamp design with rounded smooth edges Carbon bar compatible Weight: 102gBuy NS Bikes Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Deda Elementi Spare Pads for Aero Bars - Black, Black
  • £13.99
  • RRP £22.99
  • Saving you £39

Deda Elementi Spare Pads for Aero BarsHave the perfect substitution in your locker with these Spare Pads for Aerobars. Also capable of being deployed for Deda Aeroblack, AeroDue, AeroBlack 0deg, ClipBlack 31, FastBlack and ClipOne 31 aerobars, the magic tape assembling system ensures you always have a plan B.Features:One setBuy Deda Elementi from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Enduro Bearings ABEC5 ACB 71806 LLB Bearing - Silver - 30x42x7mm}, Silver
  • £13.99
  • RRP £17.99
  • Saving you £22

Enduro Bearings ABEC5 ACB 71806 LLB BearingSetting the standard for military standard, high precision bearings, this excellent Enduro bearing is built for use on hard-riding bikes. Constructed with HRC-64 hardened Grade 5 Chromium Steel Balls, and 52100 High-Carbon Chromium-Alloy mirror polished races, it can use tolerances twice as tight as ABEC 3, while working without any noise. The Graphite/Nylon ball retainers offer a virtually frictionless movement and long-lasting lubrication from its Kyodo Yushi PS-2 grease to maximise the life of the bearing. Features: Dimensions:  30x42x7mm ABEC: 5 Grade: 5 Seals:  LLB Grease:  Kyodo Yushi PS-2 Application:  Hubs, Bottom Brackets Weight:  22.37g Buy Enduro Bearings Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Park Tool High Performance Grease HPG-1 - 112g}
  • £13.99

Park Tool High Performance Grease HPG-1Help keep your components in top condition with this high performance grease from Park Tool. Ready to tackle the needs of modern bikes, this grease is perfect to use with bearings, pivots and other components.  Features:Superior adherence and extended lubrication lifeHighly water-resistantTemperature Range: -29°C to 282°C (-20°F to 540°F)Size: 113g TubeBuy Park Tool Workshop Tools from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Finish Line No Drip & Dry Teflon Bike Lube Kit
  • £13.99

Finish Line No Drip & Dry Teflon Bike Lube KitThe perfect-partnership for mess-free chain maintenance, this No-Drip applicator and dry lube kit gives your chain the best possible lubrication. Simply fill the chain luber from the 4oz bottle of Dry Lube, hold the head of the applicator to the chain and back-pedal. Squeezing the bottle sets the lube free, with the wicking pad in the head ensuring an even coat without dripping excess on the floor. Designed to take the hassle out of an essential job, this kit is a workshop must-have. Features: Volume: 4oz Design: No-mess applicatorBuy Finish Line Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Finish Line No Drip & Wet Bike Lube Kit
  • £13.99

Finish Line No Drip & Wet Bike Lube KitThis top-quality pack takes the hassle out of time-consuming chain lubrication and takes away the worry of dripping any lube on your bike or floor. Additionally, its non-drip container means every chain link can be properly lubricated without making a mess or wasting a drop. Finally, by using the handy luber, you'll save time and money as it uses 50% less lube each time.Features: No Drip Chain Luber Wet LubeBuy Finish Line Workshop from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Finish Line Ecotech 2 Bike Chain Degreaser - Blue - 20oz Bottle}, Blue
  • £13.99
  • RRP £16.99
  • Saving you £18

Finish Line Ecotech 2 Bike Chain DegreaserThis superb model features the latest technologies to remove dirt and grease without damaging your fragile plastic and rubber components. Additionally, its fast-acting formula tackles the grimiest metal parts of your bike with ease plus it's safe to clean parts with urethane elastomers and painted surfaces. Finally, its powerful soy-extracted solvents are biodegradable, so you won't have to worry about harming the environment.Features: Safe to use on painted surfaces, parts with delicate seals, urethane elastomers and more Environmentally friendly formula is fully biodegradable 100% active, so contains no water but can be diluted for less aggressive cleaningBuy Finish Line Workshop from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Park Tool Replacement Brush Set (RBS-5) - For CM-5 & CM-5.2}
  • £13.99

Park Tool Replacement Brush Set RBS-5The Cyclone Chain Scrubber brushes are replaceable. The RBS-5 brush set includes the large side scrubbing brush, two roller brushes, and two wicking foam blocks.Buy Park Tool Cleaning Tools from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Park Tool Crank Bolt Wrench CCW-5 - Blue - Silver, Blue - Silver
  • £13.99

Park Tool Crank Bolt Wrench CCW-5The CCW-5 features both a 14mm socket and 8mm hex wrench on a long, comfortable handle.Buy Park Tool Crank Tools from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Park Tool 3-Way Hexagonal Wrench (AWS) - Black - 4/5/6mm, Black
  • £13.99
  • RRP £16.99
  • Saving you £18

Park Tool 3-Way Hexagonal Wrench (AWS)This strong and durable 3-Way Hexagonal Wrench from Park Tool has been a firm favourite for decades. The ideal addition to your workshop, it features Chamfered tips for unrivalled grip. Features:AWS-1: 4mm, 5mm, and 6mm hex setAWS-3: 2mm, 2.5mm, and 3mm hex setHexes are made from Bondhus Protanium™ high torque industrial steel and are heat-treated for long life.Buy Park Tool Workshop from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Park Tool 3-Way Hexagonal Wrench (AWS) - Black - 2/2.5/3mm, Black
  • £13.99

Park Tool 3-Way Hexagonal Wrench (AWS)This strong and durable 3-Way Hexagonal Wrench from Park Tool has been a firm favourite for decades. The ideal addition to your workshop, it features Chamfered tips for unrivalled grip. Features:AWS-1: 4mm, 5mm, and 6mm hex setAWS-3: 2mm, 2.5mm, and 3mm hex setHexes are made from Bondhus Protanium™ high torque industrial steel and are heat-treated for long life.Buy Park Tool Workshop from Chain Reaction Cycles, the World's Largest Online Bike Store.

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