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

Continental Ultra Sport III Folding Road Tyre - Black - White - 700c}, Black - White
  • £16.99
  • RRP £21.99
  • Saving you £23

Continental Ultra Sport III Folding Road TyreDesigned for high-performance, this Road Tyre from Continental benefits from a PureGrip compound to ensure you enjoy high-quality results when hitting the tarmac. Featuring exceptional grip, this tyre is ideally suited for road riders who are ready to take their performance to the next level. Continental Advanced PureGrip CompoundBased on activated silica compounds, this technology was originally intended as a performance level compound, but after intensive development at our Korbach Research and Development Department Facility, an advanced new compound with outstanding grip and cross-country properties was developed. This new rubber mix, given the self-explanatory name “PureGrip”, is ranked just behind our BlackChili Compound and is being used in our performance products both in the road and mountain bike sectors. Whilst providing great grip, it is also long-lasting and highly durable – both characteristics of Continental tires, which are exclusively manufactured in the factory in Hefei (Asia).Features: Compound: PureGrip compound Tread: Dynamic Bead: Folding Use: Race, City and Road bikes ECE: E25 TPI: 180 Great long-lasting grip Highly durable Pressure: 7.50-8.50 bar (23mm); 6.50-8.50 bar (25mm) and 5.50-8.00 bar (28mm) Wheel Size: 700c Weight: 255g (23mm); 275g (25mm) and 295g (28mm)Buy Continental Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Moon Mizar Front Bike Light - Black, Black
  • £16.99

Moon Mizar Front Bike LightThe Moon Mizar is a compact and reliable front light that provides up to 100 lumens of powerful and vibrant illumination to light the route ahead. Plus, it's rechargeable, has multiple light modes and is water resistant.Lumen Output: Mode 1: 20lm - 8.00hr Mode 2: 40lm - 4.00hr Flash 1: 20lm - 70.00hr Flash 2: 50lm - 40.00hr Day Flash: 100lm - 30.00hrFeatures: Ultra-bright white LED Light mode memory Auto safe mode Quick-release magnetic bracket Side visibility Water-resistant (IPX4) 250 mAh Li-Po built-in Recharge time: 2 hrsIn The Box: Moon Mizar Front Light Magnetic mount RB-29-W 2 O-rings for mounting: RS-G / RS-HBuy Moon Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Time ATAC Cleats - Gold - 13/17 degrees, Gold
  • £16.99
  • RRP £18.99
  • Saving you £11

Time ATAC CleatsDeveloped for compatibility with all Time mountain pedals, these 13/17° cleats feature a hard-wearing brass steel construction for excellent strength and durability wherever your next ride takes you. As the cleat included with all-mountain pedal models numbered six and higher, this is the most common cleat desired for replacement. In addition, these offer heel release angles of 13 degrees or 17 degrees depending on how the cleat is set up on the shoe. It is compatible with all two-hole cycling shoes.Features: Material: Brass Steel Use: Cross Country (XC), Cyclocross (CX) and Gravel Float: +/- 5 degrees / 2.5mm Release Angle: 13/17 degrees Bolt Configuration: 2-bolt Compatibility: Works with all Time mountain pedals Single or Pair: Pair Weight: 45g (pair)Manufacturer's Part Number: 00.6718.025.000Buy Time Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Time XPRO Pedals Top Cover Kit - Black - 2 Pieces}, Black
  • £16.99

Time XPRO Pedals Top Cover KitThese top cover caps are ideal for replacing the lost or worn-out original top covers that came on your Time XPRO 10, 12 or 15 clip-in road bike pedals. This kit includes both a left and a right-side replacement top cover, so you can breathe new life back into your pedals. Engineered for easy installation, these are genuine Time replacement parts that are ideal for bringing your pedals back to their original form.Features: Use: Road Type: Pedal Cover Cap Left/Right Top replacement Compatibility: Time XPRO 10 (PD-XPRO-10-A1); Time XPRO 12 (PD-XPRO-12-A1) and Time XPRO 15 (PD-XPRO-15-A1) Single or Pair: Pair Genuine Time spare partsManufacturer's Part Number: 11.6718.000.006Buy Time Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Vision R-Bend Carbon Aerobar Extensions - Black - 350mm}, Black
  • £16.99
  • RRP £74.99
  • Saving you £77

Vision R-Bend Carbon Aerobar ExtensionsFeaturing a high-quality carbon construction, these aero handlebar extensions offer a superior strength to weight ratio whether you're training or competing. Thanks to their lightweight carbon build, they also provide riders with fantastic stiffness and strength when climbing, without any unnecessary weight holding you back when descending. Designed for ease of use, Vision has printed the adjustment range increments on each bar extension, so riders can clearly see the minimum insertion as well as its full adjustment range in millimetres. This makes them simple to install, so they can match your riding style and deliver a more personalised feel on your bike. Coming complete with an R-Bend design, these are a great choice of upgrade for riders who want to enjoy a wider range of positions as well as increased comfort on their ride. Features: Material: Carbon Use: Road, TT and Triathlon Bend: R-Bend Size: 350mm Extension Adjustment Range: 230-290mm Minimum Insertion: 290mm Manufacturer's Part Number: A8G0338666 Weight: 105gBuy Vision Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Doyenne Womens Endurance Saddle - Black - 159mm, Black
  • £16.99
  • RRP £24.99
  • Saving you £32

Prime Doyenne Womens Endurance SaddlePrepared for wherever your next ride takes you, this women's road saddle features a high-quality microfibre cover that's hard-wearing and waterproof, which makes it ideal for all-weather conditions. Prime has also kitted out this endurance-focused model with a nylon shell for optimum support during high mileage events, such as sportives and cycle touring. Its profile is also designed for a more relaxed cycling position in which the lower back follows a gentler curve as you reach the handlebars. In this position, the pelvis may tilt forward slightly to reduce the curve in the spine.Women's Road Saddle with Deep Pressure Relief ChannelThis women's road bike saddle is equipped with a contoured convex profile with a deep pressure relief channel. This alleviates central pressure and distributes support to your sit bones for sustainable comfort over long distances. It's also available in two width options to choose from (141mm or 159mm), so you can enjoy a more tailored fit as it distributes pressure and offers excellent comfort and stability.Prime Saddle Integration (PSI)Featuring Prime Saddle Integration (PSI), this model allows you to clip PSI accessories into the saddle base to allow for sleek integration. As a result, you'll easily be able to bring any essentials with you on your travels.Please note: The 141mm narrow width option has titanium saddle rails and the 159mm wide width option has Chromoly (CrMo) steel rails.Features: Cover Material: Waterproof Microfibre Shell Material: Nylon Rails Material: Titanium (141mm Option); CrMo (159mm Option) Padding: Polyurethane (PU) Foam Use: Road Size: Narrow Option: 141x265mm (with cut-out); Wide Option: 159x277mm (without cut-out) Prime Saddle Integration (PSI) Compatible Contoured convex profile with a deep pressure relief channel Wide option to suit female sit bonesBuy Prime Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Doyenne Womens Endurance Saddle - Black - 141mm, Black
  • £16.99
  • RRP £24.99
  • Saving you £32

Prime Doyenne Womens Endurance SaddlePrepared for wherever your next ride takes you, this women's road saddle features a high-quality microfibre cover that's hard-wearing and waterproof, which makes it ideal for all-weather conditions. Prime has also kitted out this endurance-focused model with a nylon shell for optimum support during high mileage events, such as sportives and cycle touring. Its profile is also designed for a more relaxed cycling position in which the lower back follows a gentler curve as you reach the handlebars. In this position, the pelvis may tilt forward slightly to reduce the curve in the spine.Women's Road Saddle with Deep Pressure Relief ChannelThis women's road bike saddle is equipped with a contoured convex profile with a deep pressure relief channel. This alleviates central pressure and distributes support to your sit bones for sustainable comfort over long distances. It's also available in two width options to choose from (141mm or 159mm), so you can enjoy a more tailored fit as it distributes pressure and offers excellent comfort and stability.Prime Saddle Integration (PSI)Featuring Prime Saddle Integration (PSI), this model allows you to clip PSI accessories into the saddle base to allow for sleek integration. As a result, you'll easily be able to bring any essentials with you on your travels.Please note: The 141mm narrow width option has titanium saddle rails and the 159mm wide width option has Chromoly (CrMo) steel rails.Features: Cover Material: Waterproof Microfibre Shell Material: Nylon Rails Material: Titanium (141mm Option); CrMo (159mm Option) Padding: Polyurethane (PU) Foam Use: Road Size: Narrow Option: 141x265mm (with cut-out); Wide Option: 159x277mm (without cut-out) Prime Saddle Integration (PSI) Compatible Contoured convex profile with a deep pressure relief channel Wide option to suit female sit bonesBuy Prime Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Hayes Dominion A4 MTB Disc Caliper Rebuild Kit - Black - A4}, Black
  • £16.99
  • RRP £19.99
  • Saving you £15

Hayes Dominion A4 MTB Disc Caliper Rebuild KitSpecifically developed for servicing your Hayes Dominion A4 hydraulic disc brake caliper, this kit contains the pistons and seals required to breathe new life back into your braking setup. Suitable for rebuilding one caliper. Genuine Hayes spare parts.Features: Use: MTB Compatibility: Dominion A4 Includes: Pistons and o-rings for servicing one caliper Genuine Hayes spare parts Manufacturer's Part Number: 98-36140-K001Buy Hayes Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Onza Aquila Mountain Bike Tyre - Black - 29" x 2.4", Black
  • £16.99
  • RRP £64.95
  • Saving you £74

Onza Aquila Mountain Bike TyreOnza has teamed up with Aaron Gwin to develop the Aquila MTB Tyre. A thoroughbred downhill tyre, designed for the toughest World Cup tracks. Like the birds of prey in their environment, Aaron is top of the pack, choosing only the best equipment he can get.Maximum Bite, Traction & FeelThe Aquila has an uninterrupted vertical channel and refined edges to increase its grip and bite at high speeds. When it’s time to slow down, it features aggressive braking edges with shallow sips across the outer edges for greater traction and feel. The centre and side knobs are aligned for maximum cornering predictability, increased grip and consistent control.Features: Intended Use: Freeride, Downhill Casing: DHC Bead: Steel wire TPI: 40 x 40 Compound: RC2 Durometer: 45a Weight: 1.32kgTechnologies: DHC Downhill Casing: Dual ply casing with butyl inlay and additional 40×40 TPI bead to bead construction. Designed to handle the toughest downhill races. RC2 Dual Compound: A combination of two different compounds. 55a for low rolling resistance and long-life on the inside and 45a on the outside for perfect cornering grip. This compound offers best performance for downhill competition riding.Buy Onza Wheels & Tyres from Chain Reaction Cycles, the world's largest online bike store.

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Brand-X 9 Speed MTB Cassette - Neutral - 11-32t}, Neutral
  • £16.99
  • RRP £24.99
  • Saving you £32

Brand-X 9 Speed MTB CassetteDesigned for smooth and reliable performance, this cassette is suitable for both mountain bikes (MTBs) and touring bikes. It features a high tensile steel build, which makes it more than capable of handling all the demands of long days in the saddle. Brand-X has also equipped this model with a standard Shimano HG spline and a tooth profile that's optimised to aid gear changes and reduce noise. This makes it a perfect replacement for your old 9 speed cassette and breathing new life back into your drivetrain.Features: Material: High Tensile Steel Use: Mountain bike (MTB), Touring bike Ratio: 11-13-15-17-19-21-24-28-32 Freehub Compatibility: Shimano type 9-11 speed freehubs Chain Compatibility: All 9 speed chains Weight: 329gBuy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Fitness-Mad Swiss Ball & Pump (65cm Silver), Silver
  • £16.99
  • RRP £21.99
  • Saving you £23

Fitness-Mad Swiss Ball & Pump (65cm Silver)Great for use at home or in the gym, the Fitness-Mad Swiss Ball & Pump which can be used for Fit Ball workouts, Yoga, Pilates, physiotherapy or as a replacement for your office chair. The ball is incredibly durable and anti-burst. The Swiss Ball is great for building core strength and balance.Features65cm diameterWeighs 1kgAnti-burstNot recommended for use with weight trainingGreat for use for Fit Ball workouts, Yoga, Pilates, and physiotherapyComes with a pump6 Phthalate and Heavy Metal Free PVC constructionBuy Fitness-Mad Training Aids from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Vitus Escarpe-Sommet 275 CS-SS Protector Kit 2018 - Black, Black
  • £16.99
  • RRP £19.99
  • Saving you £15

Vitus Escarpe/Sommet 275 CS/SS Protector KitVitus Escarpe 275/Sommet CS/SS protector kitGenuine Vitus replacement chainstay & seatstay protector for the 2015 until 2018 Escarpe & Sommet frames.Features:  Compatible with all 27.5" Sommet & Escarpe bikes from 2015 to 2018Buy Vitus Frames & Forks from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Reactor Mountain Bike Brake Mount Kit - Black, Black
  • £16.99

Nukeproof Reactor Mountain Bike Brake Mount KitThis Reactor Brake Mount Kit is for use with the 2020-2022 Nukeproof Reactor frame. Features: Kit Includes: 1x NP-127 (Brake Adaptor) 2x NP-128 (Brake Adaptor Bolt)Buy Nukeproof Frames & Forks from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Vitus Rapide FS Lower Shock Bolt Kit - Black, Black
  • £16.99

Vitus Rapide FS Lower Shock Bolt KitThe Rapide FS Lower Shock Bolt Kit from Vitus contains all the spare parts required to replace the lower shock bolt hardware on all 2021 and 2022 Vitus Rapids FS frames.Features: Genuine Vitus frame spares Includes all required replacement bolts and spacers for the lower shock mount Compatibility: All 2021 and 2022 Vitus Rapide FS framesBuy Vitus Frames & Forks from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Tifosi HG 8 Speed Cassette - Silver - 11-28t}, Silver
  • £16.99
  • RRP £18.99
  • Saving you £11

Tifosi HG 8 Speed CassetteThis 8 speed cassette is engineered for performance, whether you're shredding your favourite mountain bike (MTB) trails, clocking up the miles with your local road club or spending the weekend on a gravel adventure. It features a durable steel build, which makes it more than capable of handling the intensity that's associated with long days in the saddle. Tifosi has also ensured that this model is compatible with Shimano or SRAM drivetrain systems for easy integration with your existing setup. One final highlight is it comes complete with a lockring included.Available in a wide range of ratios, the Tifosi HG 8 Speed Cassette means there is something for every rider whether you require a road, gravel or MTB cassette.Features: Material: Steel Finish: Silver Use: Road, Gravel or MTB (depending on the selected ratio) Speed: 8 speed Compatibility: Shimano or SRAM Systems Lockring Included: YesManufacturer's Part Number: TIF708A Silver 11-28T TIF708B Silver 11-32TBuy Tifosi Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon QR Seat Clamp - Red - 31.8mm}, Red
  • £16.99
  • RRP £19.99
  • Saving you £15

Nukeproof Horizon QR Seat ClampProviding a no-compromise, reliable and lightweight design that's also aesthetically pleasing, this mountain bike (MTB) seat clamp is fully equipped for long days in the saddle. Designed and developed by Nukeproof's in-house engineers, it features a CNC-machined 6061 aluminium build, which removes all unnecessary material so you can benefit from a super lightweight QR clamp at 42g without compromising strength. Another highlight is its incorporated ergonomic QR lever allows for on-the-fly tool-free saddle height changes. A CNC stainless steel barrel, stainless steel bolt, anodised finish and laser etched graphics ensure your clamp will stay fresh and hold your seatpost securely.The clamp is a universal design but has been designed to fit perfectly with Nukeproof frames to ensure a seamless gap-free fit between the clamp and the frame.Features: Clamp Material: 6061 Aluminium CNC-machined Barrel Material: Stainless Steel Finish: Laser-etched graphics Use: All Mountain (AM), Cross Country (XC), Downhill (DH), Freeride (FR) Ergonomic QR Lever Weight: 42gBuy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon QR Seat Clamp - Red - 34.9mm}, Red
  • £16.99
  • RRP £19.99
  • Saving you £15

Nukeproof Horizon QR Seat ClampProviding a no-compromise, reliable and lightweight design that's also aesthetically pleasing, this mountain bike (MTB) seat clamp is fully equipped for long days in the saddle. Designed and developed by Nukeproof's in-house engineers, it features a CNC-machined 6061 aluminium build, which removes all unnecessary material so you can benefit from a super lightweight QR clamp at 42g without compromising strength. Another highlight is its incorporated ergonomic QR lever allows for on-the-fly tool-free saddle height changes. A CNC stainless steel barrel, stainless steel bolt, anodised finish and laser etched graphics ensure your clamp will stay fresh and hold your seatpost securely.The clamp is a universal design but has been designed to fit perfectly with Nukeproof frames to ensure a seamless gap-free fit between the clamp and the frame.Features: Clamp Material: 6061 Aluminium CNC-machined Barrel Material: Stainless Steel Finish: Laser-etched graphics Use: All Mountain (AM), Cross Country (XC), Downhill (DH), Freeride (FR) Ergonomic QR Lever Weight: 42gBuy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon QR Seat Clamp - Purple - 34.9mm}, Purple
  • £16.99
  • RRP £19.99
  • Saving you £15

Nukeproof Horizon QR Seat ClampProviding a no-compromise, reliable and lightweight design that's also aesthetically pleasing, this mountain bike (MTB) seat clamp is fully equipped for long days in the saddle. Designed and developed by Nukeproof's in-house engineers, it features a CNC-machined 6061 aluminium build, which removes all unnecessary material so you can benefit from a super lightweight QR clamp at 42g without compromising strength. Another highlight is its incorporated ergonomic QR lever allows for on-the-fly tool-free saddle height changes. A CNC stainless steel barrel, stainless steel bolt, anodised finish and laser etched graphics ensure your clamp will stay fresh and hold your seatpost securely.The clamp is a universal design but has been designed to fit perfectly with Nukeproof frames to ensure a seamless gap-free fit between the clamp and the frame.Features: Clamp Material: 6061 Aluminium CNC-machined Barrel Material: Stainless Steel Finish: Laser-etched graphics Use: All Mountain (AM), Cross Country (XC), Downhill (DH), Freeride (FR) Ergonomic QR Lever Weight: 42gBuy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon QR Seat Clamp - Blue - 31.8mm}, Blue
  • £16.99
  • RRP £19.99
  • Saving you £15

Nukeproof Horizon QR Seat ClampProviding a no-compromise, reliable and lightweight design that's also aesthetically pleasing, this mountain bike (MTB) seat clamp is fully equipped for long days in the saddle. Designed and developed by Nukeproof's in-house engineers, it features a CNC-machined 6061 aluminium build, which removes all unnecessary material so you can benefit from a super lightweight QR clamp at 42g without compromising strength. Another highlight is its incorporated ergonomic QR lever allows for on-the-fly tool-free saddle height changes. A CNC stainless steel barrel, stainless steel bolt, anodised finish and laser etched graphics ensure your clamp will stay fresh and hold your seatpost securely.The clamp is a universal design but has been designed to fit perfectly with Nukeproof frames to ensure a seamless gap-free fit between the clamp and the frame.Features: Clamp Material: 6061 Aluminium CNC-machined Barrel Material: Stainless Steel Finish: Laser-etched graphics Use: All Mountain (AM), Cross Country (XC), Downhill (DH), Freeride (FR) Ergonomic QR Lever Weight: 42gBuy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon QR Seat Clamp - Copper - 34.9mm}, Copper
  • £16.99
  • RRP £19.99
  • Saving you £15

Nukeproof Horizon QR Seat ClampProviding a no-compromise, reliable and lightweight design that's also aesthetically pleasing, this mountain bike (MTB) seat clamp is fully equipped for long days in the saddle. Designed and developed by Nukeproof's in-house engineers, it features a CNC-machined 6061 aluminium build, which removes all unnecessary material so you can benefit from a super lightweight QR clamp at 42g without compromising strength. Another highlight is its incorporated ergonomic QR lever allows for on-the-fly tool-free saddle height changes. A CNC stainless steel barrel, stainless steel bolt, anodised finish and laser etched graphics ensure your clamp will stay fresh and hold your seatpost securely.The clamp is a universal design but has been designed to fit perfectly with Nukeproof frames to ensure a seamless gap-free fit between the clamp and the frame.Features: Clamp Material: 6061 Aluminium CNC-machined Barrel Material: Stainless Steel Finish: Laser-etched graphics Use: All Mountain (AM), Cross Country (XC), Downhill (DH), Freeride (FR) Ergonomic QR Lever Weight: 42gBuy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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