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!

Link to Chain Reaction UK

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Chain Reaction UK have 41186 products listed

Hope XC Stem Front Plate - Blue - 31.8mm}, Blue
  • £12.99
  • RRP £15.00
  • Saving you £13

Hope XC Stem Front PlateThis top-quality front plate is specifically designed for use with your Hope XC Stem. Developed to look as awesome as your stem performs, this sleek model is ideal for riders who want to customise the appearance of your bike. It features a robust aluminium construction which makes it great at handling all the sudden knocks and jolts that come with rowdy off-road adventures. Features: Material: Aluminium Use: MTB, XC Compatibility: Hope XC StemBuy Hope Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Neutron Bottom Headset Cup - Black - EX49-40 - B7}, Black
  • £12.99
  • RRP £19.99
  • Saving you £35

Nukeproof Neutron Bottom Headset CupNukeproof's Neutron Bottom Headset Cup is now available as both separate top and bottom cups, so you can choose the option that you need.  The cups will allow you to replace only the bearings with the Nukeproof Steel Bearing or the upgraded Nukeproof Ti coated bearing with stainless balls. Precision-engineered to the most exacting of tolerances to deliver optimum performance and long life in harsh riding conditions.The latest generation of headsets has been revised, improved and expanded for optimum fit, sealing and performance as well as compatibility with a wide range of fork and frame standards. Featuring sealed angular contact bearings, split alloy crown races and upper and lower bearing cups CNC-machined from proprietary aluminium, the headset offers the optimum balance of lightweight, strength and durability for performance across all riding disciplines.The headset is available in a range of options to cover multiple fork/headtube configurations, including a full range of Standard Steerer (SS – 1-1/8') and Tapered Steerer (TS – 1-1/8' to 1.5') combinations. Internal and external cup options also available including zero-stack versions with internal top and bottom cups.All models feature a super tough black hard anodised finish, with laser-etched graphics.Don't know which headset you need? No problem! Simply use our Headset Technical Guide which includes a Headset Finder. Features:Specific Bottom Headset cupReplaceable angular contact bearingsLaser-etched graphics (including code)Split Alloy Crown Race for easy installation/removal Hard Anodised FinishInternal and external optionsReducer crown race for 1.5' availableBuy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Neutron Bottom Headset Cup - Black - ZS49-30 - B6}, Black
  • £12.99
  • RRP £19.99
  • Saving you £35

Nukeproof Neutron Bottom Headset CupNukeproof's Neutron Bottom Headset Cup is now available as both separate top and bottom cups, so you can choose the option that you need.  The cups will allow you to replace only the bearings with the Nukeproof Steel Bearing or the upgraded Nukeproof Ti coated bearing with stainless balls. Precision-engineered to the most exacting of tolerances to deliver optimum performance and long life in harsh riding conditions.The latest generation of headsets has been revised, improved and expanded for optimum fit, sealing and performance as well as compatibility with a wide range of fork and frame standards. Featuring sealed angular contact bearings, split alloy crown races and upper and lower bearing cups CNC-machined from proprietary aluminium, the headset offers the optimum balance of lightweight, strength and durability for performance across all riding disciplines.The headset is available in a range of options to cover multiple fork/headtube configurations, including a full range of Standard Steerer (SS – 1-1/8') and Tapered Steerer (TS – 1-1/8' to 1.5') combinations. Internal and external cup options also available including zero-stack versions with internal top and bottom cups.All models feature a super tough black hard anodised finish, with laser-etched graphics.Don't know which headset you need? No problem! Simply use our Headset Technical Guide which includes a Headset Finder. Features:Specific Bottom Headset cupReplaceable angular contact bearingsLaser-etched graphics (including code)Split Alloy Crown Race for easy installation/removal Hard Anodised FinishInternal and external optionsReducer crown race for 1.5' availableBuy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Ritchey Comp Drop In Lower Integrated Headset - Silver - HT 42-46mm IS42/30, Silver
  • £12.99
  • RRP £14.49
  • Saving you £10

Ritchey Comp Drop In Lower Integrated HeadsetDrop-in headsets with full complement angular contact cartridge bearings, alloy bearing cover and cap. Integrated System threadless headset for Campagnolo Hiddenset compatible frames with 41.8mm headtube ID.Features: Comp alloy top bearing cover and compression top cap. Sealed cartridge bearings. 45/45 degree angular contact bearings. 41.8mm.Buy Ritchey Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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FSA TH-970 ACB Headset Bearing - Black Seal - 1.1/8" - 1.1/4" Tapered, Black Seal
  • £12.99
  • RRP £13.95
  • Saving you £7

FSA TH-970 ACB Headset BearingDesigned by FSA to enable you to run forks with tapered 1.1/8” to 1. 1/4” steerer tubes in a frame with a 1.1/4" (47mm) headtube, the smooth operating TH-970 angular contact bearing (ACB) Headset Bearing delivers the precise handling and durability you need for aggressive rides, all year around.Features:Material: SteelBearing Type: Angular Contact Bearing (ACB)Steerer Tube Compatibility: Tapered 1.1/8" - 1.1/4"Headtube Compatibility: 1.1/4" (47mm) headtubesOutside Diameter: 46.8mmInside Diameter: 34mmHeight: 7mmInside Angle: 45°Outside Angle: 45°Black SealSold individuallyManufacturer's Part Number: TH-970EWeight: 26gBuy FSA Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Brand-X Integrated IS41 45x45 Headset - Black - IS41 45 x 45 Degree}, Black
  • £12.99
  • RRP £14.99
  • Saving you £13

Brand-X Integrated IS41 45x45 HeadsetThis headset comes kitted out with a tough 6061 alloy build that's CNC forged and machined for a superior strength to weight ratio. Brand-X's CNC forging and machining process shaves off any unnecessary material, while maintaining maximum strength, so you can benefit from its excellent reliability without any weight penalty. Another highlight is it features a pair of angular contact sealed bearings for greater dependability, quality and performance at an exceptional price point. Coming complete with a top cap and star nut included, this is a perfect choice of upgrade for refreshing your steering setup.Features: Material: CNC forged and machined 6061 Alloy Size: IS41 45x45 degrees Angular contact sealed bearings Includes: Top cap and Star NutBuy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Brand-X Integrated IS41 36x45 Headset - Black - IS41 36 x 45 Degree}, Black
  • £12.99
  • RRP £14.99
  • Saving you £13

Brand-X Integrated IS41 36x45 HeadsetThis headset features a hard-wearing 6061 alloy build for an excellent combination of durability and strength. Brand-X has also put this model through its CNC forging and machining process to further ensure maximum dependability without adding unnecessary excess grams to your ride. Thanks to its pair of sealed bearings, it delivers superior reliability, quality and performance at an exceptional price point. It comes complete with a top cap and a star nut included to complement your steering setup.Features: Material: CNC forged and machined 6061 Alloy Size: IS41 36x45 Angular contact sealed bearings Includes: Top cap and Star NutManufacturer's Part Number: BXINTIS4136X45H Black IS41 36 x 45 DegreeBuy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Brand-X Integrated IS42 45x45 Headset - Black - IS42 45 x 45 Degree}, Black
  • £12.99
  • RRP £14.99
  • Saving you £13

Brand-X Integrated IS42 45x45 HeadsetThe Brand-X Integrated IS42 45x45 headset features a pair of sealed bearings that offer superior reliability, quality and performance at an exceptional price point. Its hard-wearing 6061 alloy construction has also been put through the brand's CNC forging and machining process to remove any unnecessary excess material, while still maintaining maximum strength. This gives it a greater strength to weight ratio for dependable performance on every ride. Comes complete with a top cap and a star nut.Features: Material: CNC forged and machined 6061 Alloy Size: IS42 45x45 Angular contact sealed bearings Includes: Top cap and Star NutBuy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Brand-X Semi Integrated 44IISS Sealed Headset - Black - 44IISS Sealed}, Black
  • £12.99
  • RRP £14.99
  • Saving you £13

Brand-X Semi Integrated 44IISS Sealed HeadsetComing equipped with sealed angular contact bearings, this headset is designed to offer superior reliability, quality and performance at an exceptional price point. Thanks to its CNC forged and machined 6061 alloy construction, it ensures maximum toughness and durability without adding any unnecessary weight to your ride. Comes complete with a top cap and star nut.Features: Material: CNC forged and machined 6061 Alloy SHIS Norm: ZS44/28.6 / ZS44/30 Height: 9.1 +/- 1mm Angular contact sealed bearings Includes: Top cap and Star NutManufacturer's Part Number: BXSINT44IISSH Black 44IISS SealedBuy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Brand-X Quill Adaptor Alloy - Black - 150mm - 22.2mm to 28.6mm}, Black
  • £12.99

Brand-X Quill Adaptor Alloy Alloy Quill adaptor for mounting an A-Head style stem with the older threaded fork and headset. - 150mm 22.2 - 28.6 (1" - 1.1/8") - Designed for a 1" threaded steerer - 150mm 25.4 - 28.6 (1" - 1.1/8") - Designed for a 1 1/8" threaded steererBuy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Brand-X Quill Adaptor Alloy - Black - 150mm - 25.4mm to 28.6mm}, Black
  • £12.99

Brand-X Quill Adaptor Alloy Alloy Quill adaptor for mounting an A-Head style stem with the older threaded fork and headset. - 150mm 22.2 - 28.6 (1" - 1.1/8") - Designed for a 1" threaded steerer - 150mm 25.4 - 28.6 (1" - 1.1/8") - Designed for a 1 1/8" threaded steererBuy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Neutron Evo Rebuild Kit - Black, Black
  • £12.99
  • RRP £15.99
  • Saving you £19

Nukeproof Neutron Evo Flat MTB Pedal Rebuild KitAre your pedals in need of some TLC? This is a rebuild kit for Nukeproof Neutron Evo and Horizon Comp pedals, which will bring pedal performance back to the same level as when they were brand new. A guide for rebuilding your Nukeproof Flat pedal can be found hereFeatures: Pair of seals 4x Bearings 28x Pins & nuts 2x End Caps 2x BushingsDo you also require axles? you can find spare axles for the Neutron Evo HERE and for the Horizon Comp HERE.Buy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Urchin Youth Flat MTB Pedal Rebuild Kit - Black, Black
  • £12.99
  • RRP £17.99
  • Saving you £28

Nukeproof Urchin Youth Flat MTB Pedal Rebuild KitAre your pedals in need of some TLC? This is a rebuild kit for Nukeproof Urchin pedals, which will bring pedal performance back to the same level as when they were brand new.A guide for rebuilding your Nukeproof Flat pedal can be found here. Features: Pair of seals 4x Sealed bearings Full pin kit 2x End Caps 2x BushingsDo you also require axles? You can find spare axles for the Urchin pedals here. Buy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Look Delta Road Cleats - Black - 0 Degrees}, Black
  • £12.99
  • RRP £15.00
  • Saving you £13

Look Delta Cleats Replacement cleats for Look pedals. Features: Red has 9° float. Black is fixed. Buy Look Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Seal BMX Switch BMX Stunt Peg - Chrome - 35mm x 98mm}, Chrome
  • £12.99
  • RRP £14.99
  • Saving you £13

Seal BMX Switch BMX Stunt PegSturdy and supportive for confident grinding, wheelies and tricking out, these super strong steel pegs are ideal for the imaginative BMXer. Attaching to your wheel axles, they come with a 10/14mm adaptor for fast and easy fitment. Material: Super Strong Steel Size: 35mm x 98mm Compatibility: 10 or 14mm axle (adaptor included)Buy Seal BMX Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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KMC Z1 Wide EPT Single Speed Bike Chain - Silver EPT - 1/2" x 1/8" - 112 Links, Silver EPT
  • £12.99
  • RRP £15.99
  • Saving you £19

KMC Z1 Wide EPT Single Speed Bike ChainThis top-quality chain is specially engineered to get your wheels in motion quietly and reliably. Additionally, its lightweight construction features some of the finest technologies around for a dependable and firm hold. Finally, its EcoProTeQ coating combats against rust while also prolonging your chains life, making it ideal for smooth and highly-efficient shifting in any weather conditions.Features:  Size: 1/2"x1/8"  Pin Length: 8.6mm  Links: 112  Compatibility: Single speed, internal gear, BMX, track or fixed gear bikes  Long life  Anti-rust  No drop  EcoProTeQ coatedBuy KMC Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Blank Mid BMX Bottom Bracket - Black - 19mm}, Black
  • £12.99
  • RRP £15.99
  • Saving you £19

Blank Mid BMX Bottom BracketBlank's Mid Bottom Bracket Kit offers a super-smooth replacement bottom bracket to rival those at higher price points. Coming with precision sealed bearings and alloy bearing covers, this Mid Bottom Bracket Kit suits all frames with a mid bottom bracket shell. Quick and easy to install, you'll be back on the road in no time. Features:Fits all frames with a mid bottom bracket shellPrecision sealed bearingsAlloy bearing covers includedWeight: TBABuy Blank Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Blank Mid BMX Bottom Bracket - Polished - 19mm}, Polished
  • £12.99
  • RRP £15.99
  • Saving you £19

Blank Mid BMX Bottom BracketBlank's Mid Bottom Bracket Kit offers a super-smooth replacement bottom bracket to rival those at higher price points. Coming with precision sealed bearings and alloy bearing covers, this Mid Bottom Bracket Kit suits all frames with a mid bottom bracket shell. Quick and easy to install, you'll be back on the road in no time. Features:Fits all frames with a mid bottom bracket shellPrecision sealed bearingsAlloy bearing covers includedWeight: TBABuy Blank Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Blank Mid BMX Bottom Bracket - Black - 22mm}, Black
  • £12.99
  • RRP £15.99
  • Saving you £19

Blank Mid BMX Bottom BracketBlank's Mid Bottom Bracket Kit offers a super-smooth replacement bottom bracket to rival those at higher price points. Coming with precision sealed bearings and alloy bearing covers, this Mid Bottom Bracket Kit suits all frames with a mid bottom bracket shell. Quick and easy to install, you'll be back on the road in no time. Features:Fits all frames with a mid bottom bracket shellPrecision sealed bearingsAlloy bearing covers includedWeight: TBABuy Blank Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Seal BMX Mid BMX Bottom Bracket - Black, Black
  • £12.99
  • RRP £14.99
  • Saving you £13

Seal BMX Mid BMX Bottom BracketThe Seal BMX Mid Bottom Bracket features ultra-smooth, fully sealed bearings and is available for both 19mm and 22mm axle sizes.Features: Compatibility: Mid BB shell, available to fit 19mm or 22mm axle sizes Ultra-smooth, fully sealed bearingsBuy Seal BMX Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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