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.
Brands listed for Chain Reaction UK
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

Kool Stop Dura Ace Ultegra 105 Cartridge Inserts - Green - Ceramic Rims - All Weather}, Green
  • £8.99

Kool Stop Dura Ace/Ultegra/105 Cartridge InsertsThese high-performance cartridge inserts from Kool Stop are replacement brake pads that have been created to fit with a Shimano brake caliper. Incredibly versatile they are available in a variety of pad compounds to suit your needs. High Quality, High PerformanceAll of the compounds Kool Stop provide are rim friendly and are designed and manufactured directly by Kool Stop to ensure that the highest quality and braking performance is achieved.Features:Replacement Pads OnlyHigh-QualityCompound:Black: Dry riding conditionsSalmon: Extreme wet weather conditions, still superb in the dryCeramic: For ceramic coated rims, great in all weather conditionsUse: Shimano Road brakesCaliper Compatibility: Rim brakeWeight: 12g (pair)Buy Kool Stop Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Kool Stop Dura Ace Ultegra 105 Cartridge Inserts - Red - Extreme - Wet Weather}, Red
  • £8.99

Kool Stop Dura Ace/Ultegra/105 Cartridge InsertsThese high-performance cartridge inserts from Kool Stop are replacement brake pads that have been created to fit with a Shimano brake caliper. Incredibly versatile they are available in a variety of pad compounds to suit your needs. High Quality, High PerformanceAll of the compounds Kool Stop provide are rim friendly and are designed and manufactured directly by Kool Stop to ensure that the highest quality and braking performance is achieved.Features:Replacement Pads OnlyHigh-QualityCompound:Black: Dry riding conditionsSalmon: Extreme wet weather conditions, still superb in the dryCeramic: For ceramic coated rims, great in all weather conditionsUse: Shimano Road brakesCaliper Compatibility: Rim brakeWeight: 12g (pair)Buy Kool Stop Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Kool Stop MTB Contoured V-Brake Pads - Black - V-Brake}, Black
  • £8.99
  • RRP £10.99
  • Saving you £18

Kool Stop MTB Contoured V-Brake PadsThe Kool Stop MTB Contoured Pads are a top choice for mountain bike  direct pull brakes. Featuring a curved design, which allows this longer more  rigid pad to contour the rim to provide a better braking surface and ultimately  better brake performance.Features:Hardened and Plated reinforced steel backbonePatented Angled tip plowWater groovesKnurl-lock washer systemAvailable in Threaded and 2024 Aluminium Smooth PostRim Friendly CompoundsBuy Kool Stop Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Kool Stop Dura2 Pair Of Cartridge Inserts - Black - Dry Weather}, Black
  • £8.99

Kool Stop Dura2 Pair of Cartridge InsertsLight in weight but efficiently strong when clamping your wheels to a halt, these specially designed brake pads inserts are thicker than Kool Stop's regular Dura pad for a longer-lasting braking experience. Ridged with water grooves to help expel any performance-impacting moisture, each pad is made of a rim-friendly compound and measures a contact width of 7.65mm, making them ideal for use with narrower rims. Features:Material: Rim-friendly compoundDesign Features: Water groovesContact Width: 7.65mmPad Depth: 6.5mm Buy Kool Stop Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Hope Tech 3 V4 Bore Cap - Red - Small}, Red
  • £8.99
  • RRP £10.50
  • Saving you £14

Hope Tech 3 V4 Bore CapHope Technology is one of the world leaders in engineering bicycle components. Since 1989, owners Ian Weatherill and Simon Sharp have been pushing the industry forward through designing, testing and manufacturing virtually all products in-house at the factory in Barnoldswick, United Kingdom. Features: Bore caps for X2 Tech and Race calipers Small and large bore caps for Tech V4 calipers Bore caps for Tech E4 calipers CNC machined in Barnoldswick Buy Hope Tech 3 V4 Bore Cap from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Bleed Kit Liqui Moly DOT 5.1 Brake Fluid (250ml) - DOT Based Brakes}
  • £8.99

Bleed Kit Liqui Moly DOT 5.1 Brake Fluid (250ml)When it’s time to service your bike’s disc brakes, the Liqui Moly DOT 5.1 Brake Fluid works with Avid, SRAM, Formula, Hope and Hayes models to get them back to their best. Plus, this disc brake oil has a high boiling point of 270°C so you can take on the longest descents without worrying about your braking power fading. Bleed Kit also provides it in a 250ml bottle, giving you plenty of fluid for future use or for working on multiple bikes.Features: Oil Type: DOT 5.1 brake fluid Compatibility: All Avid, SRAM, Formula, Hope and Hayes hydraulic disc brakes Dry Boiling Point: 270°C Volume: 250mlBuy Bleed Kit Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Bleed Kit Hydraulic Disc Brake Fluid (100ml) - Hydraulic Based Brakes - Gold}
  • £8.99

Bleed Kit Hydraulic Disc Brake Fluid (100ml)Made in Germany, this universal Hydraulic Disc Brake Fluid works with all brands of road bike and mountain bike (MTB) brakes. Plus, as it can withstand high temperatures, you can have extra confidence on very long descents. This 100ml bottle enables you to service multiple brakes and as Bleed Kit has made sure it's environmentally friendly when it’s time to replace it, you’ll be able to dispose of it easily and safely.Features:Oil Type: MineralCompatibility: Suitable for all brands and types of mineral-based hydraulic brakesVolume: 100mlBoiling Point: Extreme 400°C/750°FFor the best possible brake performanceEnvironmentally friendly brake fluidMade in Germany100% non-water pollutantBuy Bleed Kit Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Bleed Kit Mineral Brake Fluid (100ml) - Mineral Based Brakes - Red}
  • £8.99

Bleed Kit Mineral Brake Fluid (100ml)Enjoy optimised braking performance with this Mineral Brake Fluid from Bleed Kit. Available in two variations, green or red, you can choose the best option for your ride. The Red Mineral Fluid is designed for use with Shimano Brake Systems, the Green Mineral Fluid is ideal for use with Shimano and Magura brake systems and benefits from a high boiling point for exceptional durability after prolonged use. Features:Green Mineral Fluid:Compatibility: Suitable for Shimano and Magura brakesBetter modulation & less overheatingReliable brake lever performanceExtremely high boiling pointRed Mineral Fluid:Compatibility: Suitable for Shimano brakesMade in JapanBuy Bleed Kit Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Deda Elementi DBA Di2 Seatpost Battery Holder - 27.2mm}
  • £8.99
  • RRP £10.99
  • Saving you £18

Deda Elementi DBA Di2 Seatpost Battery HolderThe innovative Deda Battery Adapter (DBA) for seatposts offers an handy and light system for new generation of Shimano Di2 internal batteries.The adapter fixing system fits inside your Deda seatpost tube, allowing safe battery installation.Features: Material: Elastomer in thermoplastic rubber Length: 70mm Weight: 10g (27,2mm)Compatible with all Deda Elementi seatposts with 27,2mm and 31,6mm diameterBuy Deda Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Deda Elementi DBA Di2 Seatpost Battery Holder - 31.6mm}
  • £8.99
  • RRP £10.99
  • Saving you £18

Deda Elementi DBA Di2 Seatpost Battery HolderThe innovative Deda Battery Adapter (DBA) for seatposts offers an handy and light system for new generation of Shimano Di2 internal batteries.The adapter fixing system fits inside your Deda seatpost tube, allowing safe battery installation.Features: Material: Elastomer in thermoplastic rubber Length: 70mm Weight: 10g (27,2mm)Compatible with all Deda Elementi seatposts with 27,2mm and 31,6mm diameterBuy Deda Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Jagwire Ferrules and Tidys Kit (Braided Casing) - Gold, Gold
  • £8.99
  • RRP £10.99
  • Saving you £18

Jagwire Ferrules and Tidys Kit (Braided Casing)The Jagwire Ferrules & Tidys Kit contains enough end caps to easily hop-up the housing on one bicycle. The caps and crimps are made from a durable alloy. It is suitable for braided 4.5mm casing and is perfect if you want to upgrade your cables to offer greater style or performance.Features: Contains 10 x 4.5mm sealed; 6 x 5mm open, 4 x cable tips Enough end caps for one bicycle for gear and brake Compatible with 4.5mm gear cable housing and 5mm brake housingBuy Jagwire Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Transfil Self Locking Gear Ferrules 4mm (10 Pack) - Black - 4mm}, Black
  • £8.99

Transfil Self Locking Gear Ferrules 4mm (10 Pack)Coming equipped with a high-grade alloy construction, this pack of 10 gear ferrules provides fantastic strength and durability on your ride. Ideal for when it's time to service your gearing set-up or upgrade your existing ferrules, this pack is specifically designed to fit 4mm outer gear casing for smooth performance. Transfil has also equipped these with a hard-anodised finish, which offers additional protection against corrosion so you can enjoy reliable gear operation in all-weather conditions without worrying about the elements. One final highlight is this pack is available in a range of colour options to choose from, so you can add some extra style to your ride.The Transfil 10 Pack 4mm Gear Ferrule is made from the highest quality materials. Transfil's technology comes from the research, innovation, and production of the control cables they produce for the French car industry. Their bicycle brake and gear cable accessories, end caps and ferrules are among the most reliable and dependable on the market.Features: Material: High-grade Alloy Finish: Hard Anodised with various colour options to choose from Compatibility: To fit 4mm outer gear casing Ferrule Size: 4mm Number of Ferrules: 10 packManufacturer's Part Number: KB65G Gold M 10 pack KB65K Black M 10 pack KB65R Red M 10 pack KB65S Silver M 10 packBuy Transfil Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Transfil Over Gear Cable Frame Protectors - 4 pack}
  • £8.99

Transfil Over Gear Cable Frame ProtectorsComing as a pack of four, these frame protectors are specifically designed to slip over your gear cable housing. Suitable for both road and mountain bike (MTB) riding disciplines, these are a great choice for riders who want to protect their valuable bike frame from becoming scratched or damaged.Features: Material: Rubberised cable protectors Compatibility: Gear cable housing Number of Frame Protectors: 4 pack Protects your bike frame from scratches or damageManufacturer's Part Numbers: KG65 Black 4 packBuy Transfil Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Funn Hilt Grips - Orange - 130mm}, Orange
  • £8.99
  • RRP £11.99
  • Saving you £25

Funn Hilt GripsFunn's Hilt Grips provide you with the ultimate in both high grip and lasting comfort, thanks to their half ribbed/half waffle design. The ribbed section helps to ensure that the pressure is relieved on the palm of your hands and the waffle section provides reliable grip as you rapidly change direction on the trails. The Hilt grips also feature inner lockrings to prevent them rotating on the bars and tough moulded ends to protect them from the inevitable impacts and crashes of Mountain biking.Features: Material: PP Rubber Lock On Grip System Half waffle/half ribbed designBuy Funn Components at Chain Reaction Cycles, the World's Largest Online Bike Store.

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Wippermann BMX-Track 100 Single Speed Bike Chain - Grey, Grey
  • £8.99
  • RRP £9.99
  • Saving you £10

Wippermann BMX-Track 100 Single Speed Bike ChainFor BMX or track bikes the Wipperman 100 Singles Speed chain is a steel construction for strength and durability, and German made for guaranteed precision.Features:Steel - 1/2“ x 1/8“, pin length: 9.2mmWeight: 403gLinks: 112 incl. spring clipBuy Wipperman Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Wippermann Connex 10 Speed Chain Connector - Silver, Silver
  • £8.99
  • RRP £9.99
  • Saving you £10

Wippermann Connex 10 Speed Chain ConnectorThis high-quality chain link is perfect for connecting your chain together without the need for any tools. Its legendary locking system is extremely resilient and reliable which means you can enjoy a secure hold on the most aggressive of rides. This is a perfect choice of component for riders who want quick and easy chain assembly after a break.Features: Material: Steel Chain Compatibility: 10 speedBuy Wippermann Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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KMC S1 Rust Buster Single Speed Bike Chain - Silver - Wide}, Silver
  • £8.99

KMC S1 Rust Buster Single Speed ChainThis superb chain is perfect for battling against the elements as it offers amazing protection from corrosion, rust and debris. It features a solid steel construction which makes it ideal at withstanding all the abuse that comes with a long day in the saddle. KMC has also equipped this single speed model with a Rust Buster coating which has passed a strict 500 hour salt spray test. This means you'll be able to enjoy the benefits of being able to ride in all weather conditions. Features: Material: Steel Finish: Patented Rust Buster anti-rust coating Speed: Single speedSize: 1/2x1/8"Buy KMC Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Token TK-B2009 Shimano Chainset Hex Bolt - Red, Red
  • £8.99
  • RRP £9.99
  • Saving you £10

Token TK-B2009 Shimano Chainset Hex BoltThe Token TK-B2009 chainset Hex Bolts are constructed of a lightweight alloy, these Shimano Hollowtech II preload bolts add a spalsh of colour to your chainset.Features:6061AL CNC machinedHex headCompatible to DURA-ACE 7800, 105 5700, ULTEGRA 6700, XT, SLX, DEOREWeight: 6.4gBuy Token Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Token TK-B2009 Shimano Chainset Hex Bolt - Gold, Gold
  • £8.99
  • RRP £9.99
  • Saving you £10

Token TK-B2009 Shimano Chainset Hex BoltThe Token TK-B2009 chainset Hex Bolts are constructed of a lightweight alloy, these Shimano Hollowtech II preload bolts add a spalsh of colour to your chainset.Features:6061AL CNC machinedHex headCompatible to DURA-ACE 7800, 105 5700, ULTEGRA 6700, XT, SLX, DEOREWeight: 6.4gBuy Token Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Rotor Cross Country Crank Arm Bumper Set - Pink, Pink
  • £8.99
  • RRP £10.49
  • Saving you £14

Rotor Cross Country Crank Arm Bumper SetThis stunning XC bumper set protects your crank arms against all the wear that comes with a long day exploring the mountains. When riding off-road you face everything from tree roots, rocks and unexpected jolts, so this superb bumper set will come in handy by offering another layer of protection.Features: Strong rubber construction Protection against wear Easy to useBuy Rotor Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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