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

Brand-X HT-01 Derailleur Hanger
  • £9.99

Brand-X HT-01 Derailleur HangerReplacement alloy gear hanger for the Brand-X HT-01 frame.Features: 1x Replacement Alloy Gear hanger Includes 2 x replacement boltsBuy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Brand-X RD-01 Derailleur Hanger
  • £9.99

Brand-X RD-01 Derailleur HangerReplacement alloy gear hanger for the Brand-X RD-01 frame.Features: 1x Replacement Alloy Gear hanger Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Vitus Hanger 43 (Dee 2016 >) - Silver, Silver
  • £9.99

Vitus Derailleur Hanger 43 (Dee 2016 Onwards)The Vitus Hanger 43 is a strong and genuine Vitus gear hanger. It is compatible with Vitus Dee frames from 2016 onwards.Features: Compatibility: Vitus Dee frames from 2016 onwards Genuine Vitus spare partClick here to view and download the Gear Hanger Cheat Sheet to ensure compatibility with all Vitus hangers.Buy Vitus Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon Pro-Comp-Neutron CrMo Axle Kit - Silver, Silver
  • £9.99

Nukeproof Horizon Pro-Comp Neutron Cro-Mo Axle KitNukeproof Horizon/Neutron CrMo Axle KitThe Nukeproof Horizon/Neutron Cro-mo Axle Kit contains a pair of replacement high-quality Nukeproof axles to fit Nukeproof pedals and a pair of M6 axle nuts. A guide for rebuilding your Nukeproof Flat pedal can be found hereFeatures: Genuine, High-Quality Nukeproof replacement parts Compatible with the following pedals: Horizon Pro Horizon Comp Neutron (alloy body)Buy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Blank Generation Plastic BMX Stunt Peg - Black - 10/14mm}, Black
  • £9.99
  • RRP £12.99
  • Saving you £23

Blank Generation Plastic BMX Stunt PegEngineered for repeated punishment, this Blank Generation Peg is purpose-made for continuous fun. This super light peg has been made with a 6061 aluminium core and nylon outer sleeve so you have the optimal strength-to-weight ratio. Show off your individuality and customise your BMX with Blank's Generation Peg so you look damn good when you're grinding along curbs, rails, or nailing some killer tricks. Features:Material: Core: 6061 Aluminium Alloy; Outer Sleeve: NylonSuper strongDesigned for punishment14/10mm Adaptor includedDimensions: 40mm (outer diameter with 26mm inner core) x110mmWeight: TBABuy Blank Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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KMC Missing Link Pair - Gold Ti-N - 11 Speed}, Gold Ti-N
  • £9.99

KMC Missing Link PairA pair of KMC bike chain joining links that have received awards within the bicycle industry for their excellent design, the Missing Links give you unmatched reliability and quality. They’re compatible with mountain bikes, city bikes and road bikes, plus Shimano, SRAM and KMC chains. Trusted by professional riders, they are the ideal choice to work seamlessly with your drivetrain.Features: Size: 1/2"x11/128" Pin Length: 5.2mm Compatible with: KMC, Shimano & SRAM chains Use: MTB and Road Comes as a pair Manufacturer's Part Numbers: 9-Speed: C09GR0000 10-Speed: C10GR0000 11-Speed: C11GR0000 12-Speed: C12GNR000Buy KMC Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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KMC Missing Link Pair - Gold Ti-N - 12 Speed}, Gold Ti-N
  • £9.99

KMC Missing Link PairA pair of KMC bike chain joining links that have received awards within the bicycle industry for their excellent design, the Missing Links give you unmatched reliability and quality. They’re compatible with mountain bikes, city bikes and road bikes, plus Shimano, SRAM and KMC chains. Trusted by professional riders, they are the ideal choice to work seamlessly with your drivetrain.Features: Size: 1/2"x11/128" Pin Length: 5.2mm Compatible with: KMC, Shimano & SRAM chains Use: MTB and Road Comes as a pair Manufacturer's Part Numbers: 9-Speed: C09GR0000 10-Speed: C10GR0000 11-Speed: C11GR0000 12-Speed: C12GNR000Buy KMC Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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KMC Missing Chainlink Pair - Silver EPT 1 - 5.2mm, Silver EPT 1
  • £9.99

KMC Missing Chainlink PairThe durable and high-quality Missing Chainlink Pair from KMC is compatible with MTB (mountain bike) and road bikes and fit KMC, Shimano and SRAM chains. Favoured by world professional racers, they are the ideal choice for any cycling enthusiast wanting a durable and reliable chain.  Link Types:Silver EPT 1: 12-Speed non-reusable - KMC, Shimano & SRAM chains (Pin Length: 5.2mm)Silver EPT 2: 11-Speed chains - KMC, Shimano & SRAM chains (Pin Length: 5.65mm)Silver EPT 3: 10-Speed chains - KMC, Shimano (Pin Length: 5.88mm)Silver EPT 4: 9-Speed chains - KMC, Shimano and SRAM (Pin Length: 6.6mm)Silver EPT 5: 8-Speed KMC and SRAM 7- or 8-speed (Pin length: 7.1mm)Silver EPT 6: 7/8-Speed KMC X8.99 + X8.93 + Z8XRB, Z7 + Z6 and Shimano UG51 + HG40/50/70/90 chains (Pin length 7.3mm)Features:Use: Mountain Bike and RoadCompatibility: KMC, Shimano & SRAM chainsComes as a pair (pack includes four pieces that make two links)Buy KMC Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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KMC 11NR EPT Missing Link Chain Connector - Silver - 1/2" x 11/128", Silver
  • £9.99

KMC 11NR EPT Missing LinkThis brilliant chain link is ideal for use with your KMC, Shimano, Campagnolo or SRAM 11 speed chain as it provides you with a stable hold. Ready for intense rides, this solid component is designed to give you a strong grip for getting the best performance out of your chain. As a result, this is a perfect choice of upgrade for riders who want a robust part for tackling the most demanding of runs.Features: Size: 1/2x11/128" Pin Length: 5.65mm Compatible Chain: KMC, Shimano, Campagnolo and SRAM 11 chainsBuy KMC Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Seal BMX Switch BMX Sprocket - Blue - 25t}, Blue
  • £9.99
  • RRP £11.99
  • Saving you £17

Seal BMX Switch BMX SprocketMade from 6061 alloy, the Seal BMX Switch Sprocket comes in a popular 25 tooth size and is incredible value for money.Features: Steerer Material: 6061 AlloySize: 25 Tooth Buy Seal BMX Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Seal BMX Switch BMX Sprocket - Black - 25t}, Black
  • £9.99
  • RRP £11.99
  • Saving you £17

Seal BMX Switch BMX SprocketMade from 6061 alloy, the Seal BMX Switch Sprocket comes in a popular 25 tooth size and is incredible value for money.Features: Steerer Material: 6061 AlloySize: 25 Tooth Buy Seal BMX Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Seal BMX Switch BMX Sprocket - Silver - 25t}, Silver
  • £9.99
  • RRP £11.99
  • Saving you £17

Seal BMX Switch BMX SprocketMade from 6061 alloy, the Seal BMX Switch Sprocket comes in a popular 25 tooth size and is incredible value for money.Features: Steerer Material: 6061 AlloySize: 25 Tooth Buy Seal BMX Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Seal BMX Switch BMX Sprocket - Red - 25t}, Red
  • £9.99
  • RRP £11.99
  • Saving you £17

Seal BMX Switch BMX SprocketMade from 6061 alloy, the Seal BMX Switch Sprocket comes in a popular 25 tooth size and is incredible value for money.Features: Steerer Material: 6061 AlloySize: 25 Tooth Buy Seal BMX Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Rotor Cross Country Crank Arm Bumper Set - Yellow, Yellow
  • £9.99
  • RRP £10.49
  • Saving you £5

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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microSHIFT Acolyte H083 8 Speed MTB Cassette - Black - 12-42t}, Black
  • £9.99
  • RRP £25.99
  • Saving you £62

microSHIFT Acolyte H083 8 Speed MTB CassetteThe Acolyte H083 8 Speed Cassette is a wide-ranging 11-42T cassette for use with microSHIFT Acolyte drivetrains. This ultra-strong steel cassette gives you smooth and responsive gear shifting performance that's ideal for enduro, cross country and all-mountain riding.Wide-Ranging 12-42T 8-Speed Steel Enduro CassetemicroSHIFT built the Acolyte 8-speed, 12-42T cassette to give you all the range you need to challenge yourself. Whether you're climbing the Cascades or the neighbourhood sledding hill, all you must think about is where to put the bike - Acolyte will take care of the rest. And yes, it works with a standard HG freehub body and a normal 8-speed chain.Key Features: Steel Cogs are continuously forged for strength and shifting accuracy Compatible with standard freehub bodiesFeatures: Series: Acolyte Model No.: CS-H083 12-42T Speed: 8-Speed Gear Range: 12-42T Surface Finish: ED Black Spider: No Cassette Body: Standard Freehub Combination: 12-15-18-21-24-28-34-42T Cog Material: SteelBuy microSHIFT Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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microSHIFT Mezzo CS-802 8 Speed MTB Cassette - Silver - 11-32t}, Silver
  • £9.99
  • RRP £18.99
  • Saving you £47

microSHIFT Mezzo CS-802 8 Speed MTB CassetteThe microSHIFT Mezzo 8-Speed cassette provides smooth and fast gear shifting performance with ramped shift-gates. Ideal for use with road and mountain bikes, this durable and dependable cassette is engineered from nickel-plated steel for the ultimate in strength and reliability. Plus, it's compatible with standard freehub bodies and most 8-Speed drivetrains.Gear Ratios: Cassettes for 8 Speed 12-25T: 12-13-15-17-19-21-23-25 11-28T: 11-13-15-17-19-21-24-28 12-32T: 12-13-15-18-21-24-28-32 11-32T: 11-13-15-18-21-24-28-32 11-34T: 11-13-15-18-21-24-28-34Features: Series: R8 Model No.: CS-H082 Speed: 8-Speed Surface Finish: Nickel Plated Spider: No Cassette Body: Standard Freehub Cog Material: SteelBuy microSHIFT Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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microSHIFT XLE H100 10 Speed Road Cassette - Silver - 11-36t}, Silver
  • £9.99
  • RRP £29.99
  • Saving you £67

microSHIFT XLE H100 10 Speed Road CassetteThe microSHIFT XLE H100 is a durable and reliable steel 10-Speed cassette that's ideal for road bike riding. Engineered from quality materials and treated with a protective chrome plating, this cassette shifts smoothly while also resisting corrosion and rust.Key Features: Cassettes for 10 Speed Chrome Plated Sprockets Gear Ratios: 11-32T: 11-12-13-15-17-19-21-24-28-32 11-34T: 11-12-13-15-17-19-21-24-28-34 11-36T: 11-13-15-17-19-21-24-28-32-36Features: Series: XLE Model No.: CS-H100 Speed: 10-Speed Material: Steel Surface Treatment: Chrome Plated Bracket Spider: N Lock Ring: Steel Weight: 351g Recommended Chain: HG 10-speedBuy microSHIFT Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Stolen Thermalite Pivotal Seatpost - Black, Black
  • £9.99
  • RRP £15.99
  • Saving you £38

Stolen Thermalite Pivotal SeatpostReady for long days nailing your favourite tricks at the park and cruising in the street, this seatpost is specifically engineered for the demands of modern BMX riding. It features a proprietary thermalite build that's material combines nylon 66 base with a 50% long glass fibre infusion for a superior strength to weight ratio. This makes it incredibly tough and dependable on your ride without weighing it down with unnecessary grams.Features: Material: Thermalite (Nylon 66 base with 50% long glass fibre infusion) Use: BMX Diameter: 25.4mm Length: 150mm Type: Pivotal Weight: 79gBuy Stolen Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Brand-X Mountain Bike Stem - Black with Silver Bolts - 1.1/8", Black with Silver Bolts
  • £9.99
  • RRP £12.99
  • Saving you £23

Brand-X Mountain Bike StemThe Brand-X Mountain Bike Stem is constructed from 3D forged aluminium ensuring it is incredibly durable and strong, without compromising on weight. Featuring a flip design which ensures the front end stays low, it is made for a clamping zone of 31.8mm, making it the perfect choice for a 29" or 27.5" bike.  Features:Sizes: 60, 70 + 80mm LengthsRise: 7 DegreesClamp Diameter: 31.8Material: 3D Forged AluminiumFinish: AnodisedColour: BlackEN-M ApprovedWeight: 146 grams (60mm)Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Brand-X Enduro Mountain Bike Stem - Black - 1.1/8", Black
  • £9.99
  • RRP £17.99
  • Saving you £44

Brand-X Enduro Mountain Bike StemCreated from a 3d forged aluminium construction, this stem is highly durable and stiff, yet also incredibly lightweight, so you can tackle whatever challenges you meet on the trails. Designed to be used alongside a bar with a clamping zone of 31.8mm, it is available in lengths of 40, 50 and 60mm.The Flip/Flop design allows the user to easily run it upside down to help keep the front end low; ideal for a 29” or 27.5” bike, where the front tends to be higher than you may want.Features:Sizes: 40mm, 50mm, 60mmRise: 3 degreesClamp Diameter: 31.8mmMaterial: 3D Forged AluminiumFinish: AnodisedColour: BlackEN-M ApprovedWeight: 114g (40mm), 131g (50mm) and 134g (60mm)Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store. 

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