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

Vitus Mythique Chainstay Yoke Protection - Black, Black
  • £5.99

Vitus Mythique Chainstay Yoke Protection The Mythique Chainstay Yoke Protection provides frame protection chainstay yoke from scuffs and bashes while also reducing noise as you ride over rough terrain. And, it's compatible with models from 2020-2021.Features: Compatibility: Vitus Mythique 2020-2021 Genuine Vitus replacement partBuy Vitus Frames & Forks from Chain Reaction Cycles, the World's Largest Online Bike Store.

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SE Bikes Raise It Up Seat - White, White
  • £5.99
  • RRP £29.99
  • Saving you £80

SE Bikes Raise It Up SeatThis BMX saddle features an extra grippy top cover that's ideal for holding you securely in place when landing your favourite tricks and cruising on the flat. SE Bikes has also kitted it out with protective bumper guards on its sides for an additional layer of durability on your ride. Another highlight is its chromoly (CrMo) steel rails, which provide a strong and secure hold to your seatpost. The reinforced X-stitching on the back panel adds to the durability and longevity of this seat. Also, the SE bottle opener in the rear will come in handy after those long rides.Features: Cover: Extra grippy top cover Side Guards: Protection bumper guards Rails Material: Chromoly (CrMo) Steel 8mm Use: BMX Bottle opener braceManufacturer's Part Numbers: 4638 Black 4639 Grey 4640 WhiteBuy SE Bikes Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Ravemen Handlebar Bracket - Strap Type - Black - 25.4mm - 35mm}, Black
  • £5.99

Ravemen Handlebar Bracket - Strap Type The Handlebar Bracket - Strap Type from Ravemen features a durable rubber strap that securely attaches to most handlebar types. Plus, it's compatible for use with CR300, CR500 and PR600 front cycle lights. Features: Designed for CR300, CR500 and PR600 headlights Compatible with tubes from 25.4mm to 35mm diameters and aero road handlebarsBuy Ravemen Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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LifeLine Tektro Universal Olive Insert and Nut - Gold - 4 x Olives, 4 x Insert, 4 x Nuts}, Gold
  • £5.99

◌LifeLine Tektro Universal Olive Insert and NutThis 12 piece kit is specially tailored for use with Tektro hydraulic disc brakes. It includes four copper olives, four inserts/barbs and four steel nuts. The inserts/barbs are designed to fit 2.5mm inner diameter hose for Tektro brakes. The olives are designed to fit 5.5mm outer diameter hose and the nuts are M8 x 0.75mm for 5.5mm outer diameter hose.Features: Use: Road, Mountain Bike (MTB) Compatibility: Tektro hydraulic disc brakes Included: 4x Copper Olive, 4x Insert and 4x Steel Nuts Suitable for Tektro hydraulic brake hose Insert/Barbs are to fit 2.5mm (Inner diameter) hose for Tektro brakes Olives are to fit 5.5mm (outer diameter) hose Nuts are M8 x 0.75mm for 5.5mm (outer diameter) hoseManufacturer's Part Number: LL-TUOIN Gold 12 PieceBuy LifeLine Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Stolen Hive Flangeless BMX Handlebar Grips - Bright Blue, Bright Blue
  • £5.99
  • RRP £9.99
  • Saving you £40

Stolen Hive Flangeless BMX Handlebar GripsThese top-quality grips are specifically engineered for BMX use as they offer brilliant comfort and control. They feature a SuperStick rubber construction which is incredibly soft and provides long-lasting relief as you thrash it out at the park. Furthermore, their unique hive pattern with TaperGrip technology keeps your hands firmly clasped on the bars for a more reliable and supportive hold.Features: Material: SuperStick Rubber Use: BMX Diameter: 30mm Length: 165mm Weight: 113gBuy Stolen Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Stolen Hive Flangeless BMX Handlebar Grips - Red, Red
  • £5.99
  • RRP £9.99
  • Saving you £40

Stolen Hive Flangeless BMX Handlebar GripsThese top-quality grips are specifically engineered for BMX use as they offer brilliant comfort and control. They feature a SuperStick rubber construction which is incredibly soft and provides long-lasting relief as you thrash it out at the park. Furthermore, their unique hive pattern with TaperGrip technology keeps your hands firmly clasped on the bars for a more reliable and supportive hold.Features: Material: SuperStick Rubber Use: BMX Diameter: 30mm Length: 165mm Weight: 113gBuy Stolen Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Stolen Hive Flangeless BMX Handlebar Grips - Caribbean Green, Caribbean Green
  • £5.99
  • RRP £9.99
  • Saving you £40

Stolen Hive Flangeless BMX Handlebar GripsThese top-quality grips are specifically engineered for BMX use as they offer brilliant comfort and control. They feature a SuperStick rubber construction which is incredibly soft and provides long-lasting relief as you thrash it out at the park. Furthermore, their unique hive pattern with TaperGrip technology keeps your hands firmly clasped on the bars for a more reliable and supportive hold.Features: Material: SuperStick Rubber Use: BMX Diameter: 30mm Length: 165mm Weight: 113gBuy Stolen Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Stolen Sumo III Thermalite Sprocket Guard - Black - 25t}, Black
  • £5.99
  • RRP £11.49
  • Saving you £48

Stolen Sumo III Thermalite Sprocket GuardThis sprocket guard features Stolen's Thermalite material that uses a nylon with long glass fibre combination to deliver excellent durability during day-long sessions at the BMX park or in the street. Specifically designed to protect your Stolen Sumo III sprocket, this model has a 7.75mm thickness and comes complete with super-strong chromoly (CrMo) steel bolts to hold it securely in place. This makes it an ideal choice for keeping your sprocket protected as you practise your favourite stunts and tricks.Features: Guard Material: Stolen's Thermalite (Nylon with Long Glass Fibre) Hardware Material: Chromoly (CrMo) Steel Use: BMX Thickness: 7.75mm Size: Fits 25 tooth Sumo III sprocket Weight: 70gManufacturer's Part Number: S622Buy Stolen Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Stolen Kung-Fu BMX Handlebar Grips - Gum, Gum
  • £5.99
  • RRP £10.99
  • Saving you £45

Stolen Kung-Fu BMX Handlebar GripsThese brilliant grips are perfect for BMX use as they offer phenomenal comfort and support as you trick it out on the half-pipe. They feature and incredibly tacky design which offers a wider, more reliable grip for big bars and brakeless riders. Their carefully sculpted surface pattern allows you to maintain a firm hold as you ride hard around the skatepark and street.Features: Material: Krayton Rubber Use: BMX Diameter: 30mm Length: 170mm Weight: 138gBuy Stolen Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Stolen Kung-Fu BMX Handlebar Grips - Black, Black
  • £5.99
  • RRP £10.99
  • Saving you £45

Stolen Kung-Fu BMX Handlebar GripsThese brilliant grips are perfect for BMX use as they offer phenomenal comfort and support as you trick it out on the half-pipe. They feature and incredibly tacky design which offers a wider, more reliable grip for big bars and brakeless riders. Their carefully sculpted surface pattern allows you to maintain a firm hold as you ride hard around the skatepark and street.Features: Material: Krayton Rubber Use: BMX Diameter: 30mm Length: 170mm Weight: 138gBuy Stolen Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Tiagra 4603 10 Speed Triple Chain Ring - Silver - 30t}, Silver
  • £5.99
  • RRP £8.99
  • Saving you £33

Shimano Tiagra 4603 10 Speed Triple Chain RingSporting many features from pro-level equipment, this 2-piece cap-free design Tiagra chainset offers unbeatable performanceFeatures:2-piece cap-free design is quick and easy to install whilst being lighter and stiffer than a traditional crank/ bottom bracket assemblySG-X chainrings feature strategically placed chain pick-up pins and tooth profiles to ensure fast and positive shiftingDesigned to work with HollowTech II type bottom bracket cupsCompatible with 10-speed Super Narrow HG chainsAnodized aluminium crank armsLightweight aluminium chainrings130mm bolt circle diameterA 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 E 3x11 Speed Front Derailleur - Black - Silver - E2 Type, Black - Silver
  • £5.99
  • RRP £44.99
  • Saving you £87

Shimano XT M8000 E 2x11 Speed Front DerailleurThis high-quality and durable front derailleur sets a whole new standard for MTB excellence. Featuring a friendly design for full-suspension and big wheels, this highly efficient model allows for improved driving and shifting performance.Stable and Reliable Front MechSeriously stable, you'll benefit from improved chain retention and more reliable shifting of the front system. This is the perfect choice of a replacement or upgrade for taking your off-road riding to the next level.Features: Use: XC, Enduro, All Mountain Speed: 3x11-Speed Fitment Type: E2 Type Friendly design for full-suspension and big wheels Highly efficient Improved driving and shifting efficiency Seriously stable Improved chain retention and more stable shifting of rear system Enduring performanceA 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 TX30 Trigger Shifter 7sp - Black - Right Hand Rear}, Black
  • £5.99
  • RRP £9.99
  • Saving you £40

Shimano TX30 Trigger Shifter 7spReliable and simple to use, the Shimano TX30 Trigger Shifter 7sp will quickly get your 7-speed drivetrain into gear so you can power up to speed and quickly access your easy climbing gears for attacking steep climbs. The Tourney SL-TX30-7R is a thumb shifter for mountain bikes that features Shimano's optical gear display, which tells riders what gear position is selected while riding.Features: Speed: 7-Speed (rear shifter) Compatibility: Shimano MTB and city bike 7-Speed rear derailleurs Inner Gear Cable Included: Yes Outer Gear Cable Included: No Optical gear display Easy to use thumb shifterA 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 RD-M370 Altus 9 Speed Jockey Wheels - Black, Black
  • £5.99

Shimano RD-M370 Altus 9 Speed Jockey WheelsThese jockey wheels are specifically designed for use with Shimano RD-M370 rear derailleurs. Coming equipped with one tension pulley and one guide pulley, these jockey wheels are an excellent upgrade for keeping your drivetrain running smoothly and friction-free. Features:Speed: 9 speedRear Derailleur Compatibility: Shimano RD-M370Part Number: Y5FT98030Includes: x1 tension pulley and x1 guide pulleyA 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 Sora SL-3000 Flat Bar Shifter - Black - 2 Speed, Black
  • £5.99
  • RRP £49.99
  • Saving you £88

Shimano Sora SL-3000 Flat Bar ShifterA model that provides reliable and intuitive shifting, the Sora SL-3000 Flat Bar Shifter will ensure you enjoy fast and reliable gear changes with your city, hybrid or flat bar road bike's 2x9 Speed drivetrain. In addition to its fast and reliable shifting performance, this shifter also boasts an optical display and a Rapidfire feature. This shifting feature enables you to downshift three gears in one stroke, so you can quickly get ready for taking on a steep climb.Features: Speed: Front: 2-Speed; Rear:9-Speed Use: Hybrid, City, Flaty bar road bikes Compatibility: Shimano road type 2x9-Speed drivetrains Inner Gear Cable Included: Yes Outer Gear Cable Included: No Technologies: 2-Way Release Optislick gear cable Optical gear display Rapidfire plusA 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 Sora Flat Bar Brake Lever - Black - Right}, Black
  • £5.99
  • RRP £21.99
  • Saving you £73

Shimano Sora Flat Bar Brake LeverDeveloped for smooth and reliable braking performance, the Shimano Sora R3000 Flat Bar Brake Lever is ideal for road bikes with flat handlebars. It features a durable aluminium build with an adjustable brake lever reach.All set for adventures on your road bike, this Shimano Sora R3000 lever features a robust aluminium construction which makes them great at handling all the sudden knocks and bumps that come with cruising around the city and further afield. Coming complete with some of Shimano's finest technologies, this version offers maximum comfort, satisfaction and effortless urban riding.Adjustable Flat Bar Brake LeverKeeping your momentum flowing, this road-focused flat bar brake lever utilises Shimano Linear Response technology to reduce friction in your caliper, lever and cables. This means you'll enjoy improved responsiveness and modulation on your daily commute or journey to the coffee shop. One final highlight is it's kitted out with an adjustable reach, so you can easily fine-tune the distance between your handlebar and each lever for a more customised feel.Features: Material: Aluminium Use: Road Compatibility: V-brakes, mechanical disc brakes, road rim calipers and cantilever brakes Adjustment: Reach adjust Handle Bar Clamp Diameter: 22.2mm Brake Cable Included: No Cable Adjust Type: Two-hand Lever Size: 2.5 finger Single or Pair: SingleTechnologies:Super SLR: SLR stands for SHIMANO Linear Response. The SUPER SLR design makes use of a friction-reducing mechanism in the caliper, lever and cable that improve response and modulation. Also for the lever, the SERVOWAVE mechanism is adopted to provide quick contact of shoe to rim and longer stroke from the initial braking effect for better control. SLR is the essential factor in the SHIMANO dual-pivot caliper that deliver more braking power than conventional side-pullsReach Adjust: Brake lever is equipped with a reach adjust mechanism. The distance from the handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferencesA 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 Flat Bar Brake Lever - Black - Left Hand}, Black
  • £5.99
  • RRP £23.99
  • Saving you £75

Shimano Tiagra Flat Bar Brake LeverIf you're looking for reliable and consistent speed control for your city or hybrid bike, the Shimano Tiagra Flat Bar Brake Lever is an ideal choice. It's compatible with V-brakes, mechanical disc brakes, road rim calipers and cantilever brakes.Keeping your momentum flowing, this road-focused flat bar brake lever utilises Shimano Linear Response technology to reduce friction in your caliper, lever and cables. This means you'll enjoy improved responsiveness and modulation on your daily commute or journey to the coffee shop. One final highlight is it's kitted out with an adjustable reach, so you can easily fine-tune the distance between your handlebar and each lever for a more customised feel.Features: Material: Aluminium Use: Road Compatibility: V-brakes, mechanical disc brakes, road rim calipers and cantilever brakes Adjustment: Reach adjust Handle Bar Clamp Diameter: 22.2mm Brake Cable Included: No Cable Adjust Type: Two-hand Lever Size: 2.5 finger Single or Pair: SingleTechnologies:Super SLR: SLR stands for SHIMANO Linear Response. The SUPER SLR design makes use of a friction-reducing mechanism in the caliper, lever and cable that improve response and modulation. Also for the lever, the SERVOWAVE mechanism is adopted to provide quick contact of shoe to rim and longer stroke from the initial braking effect for better control. SLR is the essential factor in the SHIMANO dual-pivot caliper that deliver more braking power than conventional side-pulls.Reach Adjust: Brake lever is equipped with a reach adjust mechanism. The distance from the 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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Fizik Seatpost Ring - White - 27.2mm Seatpost}, White
  • £5.99

Fizik Seatpost RingAdd a touch of colour to your ride! The simple silicon ring fits around your seatpost to add an extra touch of colour to your bike. It also helps reduce water and dirt ingress into the seat tube, as well as marking insertion depth on your seatpost so that you remember your saddle height.Features:Available in a variety of colours, and diametersMade of Silicon: durable, flexible and washableDust, Mud and water coverMarks saddle heightElegant finishing touchDiameters: ø 27,2mm, ø 30,9/31,6mmWeight: 5gBuy Easton Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Alfine S500 Single Speed Sprocket - Black-Silver - 18t}, Black-Silver
  • £5.99
  • RRP £12.99
  • Saving you £54

Shimano Alfine Single Sprocket S500Alloy sprocket carrier with revised tooth profile to prevent chain skip.Features: Number of Sprockets - Single sprocket for FH-MX70 Sprocket Material - Steel Sprocket Finish - Chrome plated Chain Compatibility - Super Narrow HG 20T Includes chain guideA 2 year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano SLX M7025 2x11 MTB Front Derailleur - Series Colour - Down Pull Exclusive}, Series Colour
  • £5.99
  • RRP £29.99
  • Saving you £80

Shimano SLX M7025 2x11 MTB Front DerailleurThe newly redesigned SLX M7025 brings trickle down technology from Shimano's higher tier XT and XTR groups. The M7025 Direct Mount front mech features traditional down/top pull routing. It provides increased traction range for long-travel and active rear suspension bikes.Features:  Swing Action: Down Swing  Top Gear Teeth: 34-38T  Cable Routing: Dual-Pull, Top-Pull exclusive  Chain Line: 48.8mm  Chainstay Angle: 66-69°  Average Weight: 145.6g  Integrated cable stop  2x11 compatible 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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