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 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

Nukeproof Horizon Top Headset Cup - Purple - EX34-28.6 - T1}, Purple
  • £19.99
  • RRP £24.99
  • Saving you £20

Nukeproof Horizon Top Headset CupThe Horizon Top Headset Cup from Nukeproof comes from a new range that uses titanium coated race bearings with stainless steel balls. The titanium coating is applied using “Physical Vapour Deposition” which means that the material is vapourised in a vacuum environment and then deposited on the bearing races as a composition coating.This process allows the structure, density and stoichiometry of the coating to be controlled allowing the exact attributes in our design brief to be achieved. The coating is 0.000118” thick and has a molecular bond to the bearing races so it won’t wear off or corrode. The bearing is ABEC 5 certified which means that it has passed tests which include ID and OD tolerance’s, roundness of ball, the trueness of faces & surfaces as well as noise testing at high RPM making it the perfect bearing for use in a headset.These bearings have been designed for use in the harshest weathers and have gone through various tests by the Nukeproof team during development so they are 100% confident in their performance. To back this up Nukeproof are offering a 5-year warranty so you can rest easy knowing your purchase will be a good investment.Click here to view and download our Nukeproof Headset Technical ManualFeatures:  Headset Type: Specific Top Cup Bearings: Replaceable, angular contact type  Graphics: Laser-etched  Finish: Hard Anodised  Options: Internal and external  Includes: Top cap and bolt supplied                                                                                                            Model Headtube Internal Diameter Steerer Black EX34-28.6 - T1 1.1/8" Top Cap Included 34mm 1 1/8" Black ZS44-28.6 - T2 1.1/8" Top Cap Included 44mm 1 1/8" Black ZS49-28.6 - T3 1.1/8" Top Cap Included 49mm 1 1/8"  Buy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Mega Carbon MTB Upper Swing Link Kit - Neutral, Neutral
  • £19.99

Nukeproof Mega Carbon MTB Upper Swing Link KitThe Mega Carbon Upper Swing Link Kit from Nukeproof is for use with the 2021-2022 Mega Carbon Frame.Features: Genuine Nukeproof Spare Parts Part Numbers: 2x FB-SUP-LK120 - Swing Link Bolt 1x FB-LUO-072 - Swing Link Pivot Axle Compatibility: Nukeproof 2021-2022 Mega CarbonBuy Nukeproof Frames & Forks from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Deore BR-M486 Hydraulic Disc Brake - Black - 1300mm 160IS, Black
  • £19.99
  • RRP £49.99
  • Saving you £60

Shimano Deore BR-M486 Hydraulic Disc BrakeBringing you dependable performance and great value, the Shimano Deore BR-M486 Hydraulic Disc Brake is an ideal addition to your mountain bike (MTB), for confidence-inspiring stopping power on the trails. Simple to install, setup and to maintain, the reliable and efficient M486 disc brake is the perfect choice for those who are new to MTB or seasoned riders who are experts at attacking the toughest terrain. This fully bled and assembled brake is compatible with post mount or international standard forks when used with adapters (sold separately) It can be used with 6-bolt or Centre-Lock rotors (also sold separately).Features: Brake Type: Hydraulic Disc Brake Brake Pads Included: Yes, Resin type - For use with resin pads only Brake Rotor Included: No Great value brake lever gives you plenty of power at your fingertips 2-finger alloy lever design for secure grip when braking Slim reservoir body give a neat and compact design Lever reach adjustment Compatible with post mount or international standard forks when used with adapters (sold separately) Can be used with 6-bolt or Centre-Lock rotors (sold separately) Sold IndividuallyA 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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Brooks England Microfiber Handlebar Tape - Honey, Honey
  • £19.99
  • RRP £24.99
  • Saving you £20

Brooks England Microfiber Handlebar TapeEnjoy comfort and long-lasting quality with this Microfiber Handlebar Tape from Brooks England. Made from a synthetic material, which has a hard-wearing polyurethane coating to protect against wear and tear. This Handlebar Tape includes 2 finishing strips and Brooks branded bar end plugs. Features:Easy to wrap, flexible materialIncludes 2 finishing strips & 2 bar end plugsMaterial: Synthetic microfibre with polyurethane coatingBar Ends Included: YesBuy Brooks England Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Blank Halflink Single BMX Bike Chain - Chrome, Chrome
  • £19.99

Blank Halflink Single BMX Bike ChainSpecifically designed for micro gearing, Blank's Halflink Chain is a superb heavy-duty chain. Super strong and stretch proof, this Halflink Chain will compliment your transmission. Features:StrongStretch proofDesigned for micro gearingBuy Blank Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Blank Halflink Single BMX Bike Chain - Black, Black
  • £19.99

Blank Halflink Single BMX Bike ChainSpecifically designed for micro gearing, Blank's Halflink Chain is a superb heavy-duty chain. Super strong and stretch proof, this Halflink Chain will compliment your transmission. Features:StrongStretch proofDesigned for micro gearingBuy Blank Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Brooks England Leather Handlebar Tape - Black, Black
  • £19.99
  • RRP £54.99
  • Saving you £64

Brooks England Leather Handlebar TapeEnjoy comfortable grip and control with this Leather Handlebar Tape from Brooks England. Constructed from durable and hard-wearing perforated leather, this timeless tape ticks all the boxes.  Andrea Meneghelli explains: "Some good things just never change. One of these is certainly leather, a material used for thousands of years for clothing, shoes, etc because of its unique properties. Sometimes innovation for innovation’s sake sees traditional materials - which are still capable of outperforming newer ones - left behind as fashions change. Today most handlebar tapes are made of plastic, synthetic cork or micro-fibres but Brooks believes that by reintroducing leather it could become the next big thing among discerning cyclists."Features:Includes: 2 strips of adhesive perforated leather bar tape, 2 adhesive cloth strips.Material: Perforated leatherSingle or Pair: PairGel or Tape: TapeLength: 215cmThickness: 2mmBar Ends Included: 2 bar end plugs made of rubber, featuring the Brooks logo.Buy Brooks England Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Deore XT M8000 I-Spec B Shifter - Black - 2050mm, Black
  • £19.99
  • RRP £55.99
  • Saving you £64

Shimano Deore XT M8000 I-Spec B ShifterThis mountain bike (MTB) shifter is well-equipped for the demands of modern trail-riding, exploring new routes and all-day epics in the mountains. It features a comfortable ergonomic design with a long lever body and an anti-slip texture on the main paddle, so riders can benefit from strong and dependable shifting performance on every ride. Coming complete with many of Shimano's renowned technologies such as Rapidfire Plus and 2-Way Release, this is an excellent choice for reliable shifting in all weather and terrain conditions. One final highlight is this version uses Shimano's I-Spec B integrated mounting system for a cleaner and lighter bar setup.Features: Use: Mountain Bike (MTB) Speed: 11 speed Mount Type: I-Spec B Shifter Orientation: Right hand Single or Pair: Single Shifter Type: RapidFire Plus Max Multiple Shifts: 4 Multi-Bearing Construction: 2 Optical Gear Display: No Release Function: 2-Way Release, Instant Release Shifting Lever Cable Adjust: Yes Shifting Lever Position Adjust: Yes Weight: 117g (approx)Technologies: Multi Release: Previous shifting systems shifted faster in one direction than the other. Choosing top normal or low normal always meant sacrificing shifting speed in one direction. Now with Multi Release you can release shift two gears in one stroke. The result - the fastest possible shifting in both directions regardless of rear derailleur choice. Optislick: Optislick cables feature a minimal and uniform electrically coated layer that improves cable routing efficiency and provides excellent corrosion resistance. I-Spec B: Integration mounting system of the shifter and brake lever. It can realise clean appearance, more space for handlebar area and lightweight. SP41: With OT-SP41 the entire length of the outer casing is pre-lubricated with a special silicone grease for quick and precise shifting performance. OT-SP41 maximally reduces the inner cable friction to provide quick response to operations and easy/effortless shifting. Moreover, power loss due to delay in shifting and fatigue by shifting especially when you ride on the terrain with many ups and downs as well as a long-distance is also reduced. Rapidfire Plus: Mountain bikers have used Rapidfire Plus since 1985. Rapidfire Plus is still a winning choice from a wide range of riders from XC racers to freeriders. Rapidfire Plus is suited to quick shifting, giving riders the ability to downshift three gears in one stroke. Rapidfire Plus shifters from Deore to XTR all feature 2-way Release, which means release shifts by pull of the index finger or push of the thumb. 2-Way Release: The Rapidfire Plus shifter release lever is commonly called a trigger because it is operated like a pistol, by pulling toward the grip. The release lever of Rapidfire Plus shifters from Shimano Alivio to XTR can be operated in this same manner but adds the ability to activate a release shift by pushing with the thumb. Instant Release: Instant Release shifting replaces the two-stage click and release shifting you are familiar with. Instant Release shifting releases cable as soon the lever is activated, resulting in the quickest possible gear changes. Whether it is an upshift with a top normal rear derailleur or a downshift with low normal rear derailleur a quicker shift is always a better shift.Manufacturer's Part Number: 85205404 Black 2050mm Right 11spA 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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Brooks England Leather Handlebar Tape - Brown, Brown
  • £19.99
  • RRP £54.99
  • Saving you £64

Brooks England Leather Handlebar TapeEnjoy comfortable grip and control with this Leather Handlebar Tape from Brooks England. Constructed from durable and hard-wearing perforated leather, this timeless tape ticks all the boxes.  Andrea Meneghelli explains: "Some good things just never change. One of these is certainly leather, a material used for thousands of years for clothing, shoes, etc because of its unique properties. Sometimes innovation for innovation’s sake sees traditional materials - which are still capable of outperforming newer ones - left behind as fashions change. Today most handlebar tapes are made of plastic, synthetic cork or micro-fibres but Brooks believes that by reintroducing leather it could become the next big thing among discerning cyclists."Features:Includes: 2 strips of adhesive perforated leather bar tape, 2 adhesive cloth strips.Material: Perforated leatherSingle or Pair: PairGel or Tape: TapeLength: 215cmThickness: 2mmBar Ends Included: 2 bar end plugs made of rubber, featuring the Brooks logo.Buy Brooks England Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Crud Rear XL Fender - Black, Black
  • £19.99

Crud XL Rear FenderReady to attack the trails on both 27.5” and 29” wheeled mountain bikes (MTBs), Crud has ensured its XL Rear Fender provides the coverage to keep you cleaner and dryer on the sloppiest routes. Simple to install, it securely clamps to your seatpost and is adjustable so you can obtain your desired angle. This wide rear mudguard also has a smooth anti-clog design and ensures both you and your ride are well protected as your tyres kick up the worst that the trail can offer.Features:Mount Position: Seatpost Wheel Size: Suits 27.5" and 29" wheels Mount Type: Bracket included Seatpost Compatibility: 24mm to 32mm seatpostsBuy Crud Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Cinelli Pista Track Bike Stem - Black - 1.1/8", Black
  • £19.99

Cinelli Pista Track Bike StemWith its 65° angle for aggressive indoor racing, the Pista Track Bike Stem will put you in the ideal position for ultra-efficient sprinting. Cinelli has made it from 6061 T6 aluminium alloy, which brings you the ideal mix of rigidity and low weight. Finished off with bold Cinelli side decals and a laser-etched faceplate, this race-ready component will enhance the looks of modern and classic bikes.Features: Material AL 6061 T6 (body and front cap) Bolt Material: Chromium-plated Steel, 12.9mm, Front: M5; Rear: M6 Handlebar Clamp Diameter: 31.8mm Steerer Tube Clamp Diameter: 1.1/8" (28.6mm) Stem Angle: 65° Invertible: No Stem Cap Included: No Weight: 180gBuy Cinelli Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Defeet Evo Classique Socks SS19 - White - L}, White
  • £19.99
  • RRP £24.99
  • Saving you £20

DeFeet Evo Classique SocksPutting comfort first on every ride out, the DeFeet Evo Classique Socks are astonishingly lightweight, with a whole heap of breathability cooling and wicking sweat away from the skin. Light compression helps to keep fatigue at bay on longer rides, and the no-feel toe seams helps to prevent chafing too for the complete package.Features:Material: 50% Nylon, 39% Polyester, 11% LycraDeveloped with comfort in mind for tough roads and long days on the bikeThin, lightweight, and compressive for support and secure fit on the footBreathable and moisture wicking, designed to dry fast inside securely fitted cycling shoesNo feel toe seamMachine wash cold, tumble dry low. No bleach, softeners or harsh detergents.Buy DeFeet Clothing from Chain Reaction Cycles. The World's Largest Online Bike Store.

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Nukeproof Blackline Short Sleeve Jersey 2021 - Khaki - M}, Khaki
  • £19.99
  • RRP £45.00
  • Saving you £56

Nukeproof Blackline Short Sleeve JerseyThe Nukeproof Blackline Short Sleeve Jersey is fully updated so it's better than ever. The jersey blends two Italian made performance fabrics to ensure the jersey performs where needed - when you're ripping along mountain bike trails.The front body and sleeves of the Blackline Short Sleeve Jersey are constructed from a lightweight fabric (115gsm), highly breathable yarn that is super soft against the skin. Its mono stretch piquet fabric allows unrestricted movement and the increase wicking moisture alongside minimised drying manages your riders core temperature. It’s also abrasive resistant to ensure the Blackline Jersey stays looking fresh.The super lightweight (110 GSM) warp-knit back panel regulates body temperature by maximising the airflow out of the body and is both quick wicking and fast drying. The jersey is a trail fit, so designed to be worn loose against the body. Lastly, with its natural UV protection and an anti-bacterial finish, this is a jersey ideally suited to hitting the summer trails.Nukeproof have committed to using Bluesign® fabrics. This is a solution for sustainable textile production. It eliminates harmful substances right from the beginning of the manufacturing process and sets and controls standards for environmentally friendly and safe production.Nukeproof BlacklineFully designed and developed by The Nukeproof team in Belfast, they use the highest quality fabrics, great MTB inspired cut/fit and have all the features they wanted out of their ride apparel. The Blackline range is their premium trail collection.Features:Materials: 100% PolyesterHigh-Performance trail jersey made in EuropeMoisture-wicking and quick-dryingAnti-bacterial finish on garment for odour resistanceCrewneckSet-in sleevesDropped back hemNukeproof brandingUV protectionBluesign® Approved - Eco-Tech CertifiedBuy Nukeproof Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.

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microSHIFT Advent X M9505 10 Speed Gear Shifter - Black - Right Side}, Black
  • £19.99
  • RRP £21.99
  • Saving you £9

microSHIFT Advent X M9505 10 Speed Gear ShifterThe Advent X M9505 10 Speed Trigger Shifter from microSHIFT ensures fast, responsive and dependable gear shifting performance. Compatible with the Advent X rear derailleurs only, this shifter is ideal for 1x10-Speed wide-ranging drivetrains and is ideal for enduro, cross country and all-mountain trail riding.Precise, Fast and Dependable 10-Speed Trigger Shifting PerformanceOn the trail, the goal is to think about your shifting as little as possible. microSHIFT's Trail Trigger features millimetre-perfect ergonomics to put the shift levers exactly where you want them, giving you quick thumb access without compromising your grip over rough terrain. Light lever action is paired with super positive indexing to make sure you never miss a shift.Key Features: Compatible with microSHIFT Advent X rear derailleur Internal cartridge bearings allow for light lever throw and positive actuation under load Precise ergonomics put the shift lever where you want them Not compatible with Shimano or SRAMFeatures: Series: Advent X Model No.: SL-M9505-R Shifter Style: Trail Trigger Speed: 10-Speed Sealed Bearings: Yes Silicone Pad: No Compatibility: microSHIFT Advent X Only Gear Indicator: No Operations: Thumb-Thumb Bracket Material: Aluminium Weight: 119gBuy microSHIFT Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Primal Won't Stop T-Shirt AW18 - Grey - XXL}, Grey
  • £19.99
  • RRP £24.99
  • Saving you £20

Won't Stop T-ShirtWe'll break for beer and baby ducklongs only.The Won't Stop T-Shirt perfectly reflects your passion for the wheels and is perfect on casual days.Features:Material: 100% CottonCasual fitPreshrunkBuy Primal Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Continental Ultra Sport III Folding Road Tyre - Black - Black - 700c}, Black - Black
  • £19.99
  • RRP £21.99
  • Saving you £9

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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Hiplok Flipstand Portable Workstand - All Black - Bar & Saddle Protector}, All Black
  • £19.99

Hiplok Flipstand Portable WorkstandCompact, lightweight, portable bike stand for carrying out general bike maintenance. The Hiplok Flipstand's small dimensions and lightweight nature make it ideal for weekend riding or racing trips as well as an alternative to larger, more expensive bicycle stands. Ideal for punctures, bike cleaning and general maintenance, Flipstand prevents damaged controls and dirty grips as well as protecting your saddle and improving stability of bike when upside down. Flipstand is a compact bike stand. Its small dimensions and lightweight nature make it ideal for weekend riding or racing trips as well as an alternative to larger, more expensive bicycle stands for those short on space at home. Ideal for punctures, bike cleaning and general maintenance, Flipstand prevents damaged controls and dirty grips as well as protecting your saddle and improving the stability of the bike when it is upside down. Features: Compact Bike Stand High durability, water repellent outer Handlebar stabilisers Saddle protector Tool storage pocket For all bike types Indoor and outdoor use Weight: 206gBuy HipLok Workshop from Chain Reaction Cycles, the World's Largest Online Bike Store.

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SwissStop Rat Brake Pads - Alloy Rims}
  • £19.99

SwissStop Rat Brake PadsThese high-quality pads are specifically designed for use with smooth post canti brakes as they deliver awesome stopping performance in all-weather conditions. Suitable for less aggressive riding, these superb components are offer excellent braking efficiency in both dry and wet conditions. Recommended for use with rims made of softer alloy including magnesium, these are an ideal choice of replacement for enjoying dependable braking control on every run. Features:Compatibility: Softer alloy rims including magnesiumType: Smooth post canti brakesPart Number: P000310204Buy SwissStop Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Hayes Dominion A2 Brake Pads - Semi-Metallic T106}
  • £19.99
  • RRP £24.99
  • Saving you £20

Hayes Dominion A2 Brake PadsThese hydraulic disc brake pads are developed for use with Hayes Dominion A2 disc brakes. Available in multiple compound options to select from the drop down below. Perfect for breathing new life back into your braking set-up and benefitting from powerful and consistent performance as you hit your favourite mountain bike (MTB) trails or cross country (XC) adventure. Genuine Hayes spare parts.Sintered T100 OptionSintered metallic friction material provides maximum stopping power in wet and dry conditions.Semi-metallic T106 OptionFriction material provides enhanced modulation and silent operation.Features: Pad Compound: Multiple options available to select Use: Mountain Bike (MTB), Cross Country (XC) Compatibility: Hayes Dominion A2 hydraulic disc brakes Single or Pair: PairManufacturer's Part Numbers: 98-36141-K102 Black Semi-Met T106 98-36141-K101 Gold Sintered T100Buy Hayes Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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ITM Alcor 80 Road Stem - Black - 1.1/8", Black
  • £19.99
  • RRP £33.99
  • Saving you £41

ITM Alcor 80 Road StemThe ITM Alcor 80 stem is made from 6061 T6 alloy that has been 3D forged. This means it is very light and incredibly strong and stiff. The stem features a 10° drop that can be flipped to give a low, aggressive position or an upright and comfortable one. It features a 31.8mm clamp size.Features: Material: AL 6061 T6 alloy Angle: 10° Steerer Clamp Size: 1.1/8" Bar Clamp Size: 31.8mmBuy ITM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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