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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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

Tubolito Tubo City Inner Tube (700c) - 700c}
  • £17.49

Tubolito Tubo City Inner Tube (700c)Perfect for commuting, touring and trekking, this versatile inner tube offers a light, comfortable and dependable tube for everyday life. Whether you're commuting to work or planning a longer trip into the countryside, this high-quality inner tube is designed for maximum performance. Due to its slightly larger wall thickness, this model is not only three times as durable as standard hoses but also holds the air pressure better. This makes it perfect for longer trips in nature, in everyday life and also for e-bike tours. Approved for disc and rim brakes.The Ultralight, Extra Durable Bicycle TubeFor a long time, the innertube has been overlooked in the bicycle industry. Tubolito are changing that. Their vision: The perfect inner tube. Street, Trail or City - Developed for the optimal cycling experience.Lightweight: 2/3 Lighter Than A Standard TubeEvery gram counts. Even more if you reduce the rotational weight. Tubolito offers an easy and achievable weight tuning. Tubolito can provide this solution by combining a new material with a self-developed production technology. Tough 2x Stronger Than Standard TubesLighter and more robust. Tubolito solves this contradiction by using a new concept: manufacturing the tube with a thermoplastic elastomer, called TPU - materials known for durability and excellent damping. Their goal to transform these excellent material characteristics into an outstanding bicycle product, reducing contact areas and seams.Developed and Manufactured in Europe Tubolito tubes are manufactured in Europe, and all assembly parts are sourced in Europe. This allows Tubolito to maintain very high-quality standards. Features: Material: TPU (Thermoplastic Elastomer) Use: City, Trekking Wheel Size: 700c Tyre Width: 30-47c Valve Type: Multiple options available to select separately 40% lighter -up to 60g weight saving per wheel and 50% smaller packed size 3x more robust at puncture test Same comfort as a butyl tube Suitable for disc and rim brakes Weight: 90gManufacturer's Part Numbers: TL-33000070 Black Presta 30mm 700c 30 - 47c TL-33000071 Black 2 Schrader 30mm 700c 30 - 47cBuy Tubolito Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Hope Pro 4 Rear Boost MTB Hub Axle (148mm) - Silver, Silver
  • £17.49

Hope Pro 4 Rear Boost MTB Hub Axle (148mm)A genuine Hope component, this axle is the perfect spare or replacement to keep you running with Boost-sized brilliance. Features: Axle Size: 12x148mm Boost Buy Hope Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Hope Pro 4 Rear Mountain Bike Hub Axle - Silver, Silver
  • £17.49

Hope Pro 4 Rear Mountain Bike Hub AxleA genuine Hope component to replace or upgrade your Hope Pro 4, Pro 2 Evo, XC6 and XC3 rear hubs, this 135mm axle is easily installed for an efficient and hard-wearing performance. Features: Material: Aluminium Compatibility: Hope Pro 4, Pro 2 Evo, XC6, XC3 HR hubs Weight: 41g Buy Hope Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Michelin Wild Run'R Slick MTB Tyre - Black - Wire Bead, Black
  • £17.49
  • RRP £24.99
  • Saving you £30

Michelin Wild Run'R Slick MTB TyreIdeal for hybrid city bikes or to turn your 26” wheeled mountain bike into a fast road-ready machine, the Wild Run'R is a high-grip, fast-rolling urban bike tyre. Its smooth tread rolls easily to help you to get up to speed quickly and provides reliable grip when cornering and braking. This tyres larger volume also helps to soak up impacts and vibrations from poor road surfaces.Features:Tyre Type: ClincherBead Type: WireCasing: 33 tpiETRTO: 35-559Transform your mountain bike into a high-performance road machineTubeless Compatible: NoRecommended Pressure: 2-6 bar / 29-87 psiWeight: 420gBuy Michelin Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Topeak Morph Mini Bike Pump - Silver - Road/MTB}, Silver
  • £17.49
  • RRP £29.99
  • Saving you £42

Topeak Morph Mini Bike PumpWeighing only 154 grams, Topeak has managed to pack a lot of features into its Morph Mini pump, giving you the stability and pressure output you need to quickly any bike type bike rolling again. Despite its small size, it boasts a fold-out T-handle, a footpad and a flexible air hose. This means it gives you the benefit of a floor pump but in an easier to transport size.Features: Barrel Material: Butted Aluminium Thumb Lock Material: Plastic Handle Material: T-Type Dual Density Polymer Valve Compatibility: Presta/ Schrader/ Dunlop Valves Maximum Output: 160 psi / 11 bar Added Features: Fold-out footpad, flexible hose, frame mounting bracket Size (LxWxH): 26x5x2.8cm / 10.2” x 2.0” x 1.1” Bike Compatibility: Suitable for all bike types Weight: 154 g / 5.43oz Buy Topeak Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Chromag Basis Bar Grips - Neon Yellow - 142mm}, Neon Yellow
  • £17.49
  • RRP £24.99
  • Saving you £30

Chromag Basis Bar GripsEnjoy a firm grip, no matter what challenges the terrain may bring, with the Basis Bar Grips from Chromag. Made from a durable rubber construction, they are ideal for intensive riding. What's more, the thin diameter benefits from a dimpled pattern, which gives added protection for your peace of mind. Features:Material: Rubber compoundPattern: Dimpled patternDefinition of Grip: TackyDiameter: 30mmLength: 142mmSingle or Pair: PairWeight: 104g (per pair)Buy Chromag Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Ritchey Logic V2 Conventional Headset - Black - 1.1/8", Black
  • £17.49

Ritchey Logic V2 Conventional HeadsetRitchey has made its tough and smooth operating Logic V2 Headset with a smaller upper bearing to keep the weight low and a larger lower one to withstand hard use and heavy impacts. Extensively tested and refined to not just meet but to double the required European safety standards, this conventional headset delivers a performance and safety level you can rely on. Built with deep top and bottom cups for a solid install into your bike’s headtube it’s finished off with Ritchey’s waterproof internal grease so you’ll enjoy many years of friction-free, precise steering.Features: Headset Type: Conventional external type Steerer Tube Compatibility Size: Straight 1 1/8" Bearing Type: Retainer ball bearing Stack Height: 30.2mm Upper Bearing Dimensions: 34mm external, 28.6mm internal Lower Bearing Dimensions: 34mm external, 30mm internal S.H.I.S information: EC34/28.6 / EC34/30 Upper Cone: Steel Upper Cup: Steel Lower Cup: Steel Crown Race: Steel Headset Adjuster: Plastic Small upper angular contact bearings save weight, larger lower bearings boost strength and durability Uses Ritchey grease Manufacturer's Part Number: 200.HS247.121Buy Ritchey Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Ritchey Comp Press Fit Semi Integrated Headset - Black - 46mm Outer Diameter}, Black
  • £17.49
  • RRP £18.99
  • Saving you £8

Ritchey Comp Press Fit Semi Integrated HeadsetEnjoy a high-quality performance from this Press Fit Semi Integrated Headset from Ritchey. Featuring a durable and hard-wearing Chromoly (CrMo) top bearing cover and an alloy top cap, for long-lasting performance you can count on. S.H.I.S. OverviewThe Standardized Headset Identification System (S.H.I.S.) creates a common language for describing modern bicycle headsets. The system provides comprehensive and scalable headset fitment information in a standardized format; making it easy to communicate headset requirements based on frame and fork interfaces.The system addresses the critical interface dimensions required to fit a fork to a frame, as well as bearing location/cup type. To determine fit, four dimensions are needed: (1) stem-clamp diameter of fork, (2) crown-race seat diameter of fork, (3) head-tube top inside diameter, and (4) head-tube bottom inside diameter. Bearing location and cup-type are identified as (a) external cup (EC), (b) semi-integrated or ZeroStack (ZS), or (c) integrated (IS).Bearing Location/Cup Types:EC (External Cup)Bearings contained within cups that are located outside of the frame.ZS (ZeroStack)Bearings contained within pressed-in cups where the cup and bearings rest inside the frame.IS (Integrated)Bearings that fit directly into a bonded or machined interface that is integrated into the frame.Features:A semi integrated press fit headsetComp Chromoly (CrMo) top bearing coverSemi cartridge bearingsSupplied with Ritchey high quality alloy star nut and top capBlack FinishSteerer Size: 1-1/8", 1-1/8"-1-1.5"Fits: 1 1/8" steerer tubeStack Height: 11.3mmUpper S.H.I.S: ZS44/28.6Lower S.H.I.S: ZS44/30Upper Headtube: 50/44mmLower Headtube: 50/44mmWeight: 109g (approx.)Buy Ritchey Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Ritchey Pro Headset Bearing - Silver - 41.0 x 30.15mm - Press Fit}, Silver
  • £17.49
  • RRP £18.99
  • Saving you £8

Ritchey Pro Headset BearingGenuine Ritchey replacement parts, the Pro Headset Bearings are compatible with frames with fully integrated headtubes and deliver super-smooth rotation for precise handling. An ideal addition to your road or mountain bike (MTB) these hard-wearing fully sealed angular contact bearings (ACBs) will maintain their performance in all riding conditions.Ritchey strives for at least twice the standard laid out by CEN (the European Committee which determines minimum safety standards for bicycles and components sold in Europe). By the time you put a Ritchey product on your bike, it has passed a global testing and approval process second to none.Features: Material: Steel Bearing Type: Angular contact Pro bearings (ACB) for Ritchey Fully Integrated headsets Angles: 45° / 45° Dimensions: Three separate options available, 41x30.15mm, 41.8x30.5mm and 51.9x40mm Width: 8mm Steerer Tube Compatibility: Separate 1.1/8" and 1.1/8"-1.5" options Contains: 2 bearings for Press Fit and Campy Spec options and only 1 bearing is supplied for Taper option Genuine Ritchey replacement parts Manufacturer's Part Numbers: 41mm: 200.HS247.178; 41.8mm: 200.HS247.173; 51.9mm: 200.HS247.175Please Note: The 41mm and 41.8mm options are a pair of headset bearings, the 51.9mm (1.5") Taper option is a single lower headset bearing only.Buy Ritchey Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Kool Stop D296T SRAM Aero Pro Road Disc Brake Pads - Black - Sintered}, Black
  • £17.49
  • RRP £19.99
  • Saving you £13

Kool Stop D296T SRAM Aero Pro Road Disc Brake PadsThis superb brake pad set is specifically designed for use with Avid Elixir 9, 7, 5, 3, 1, CR, R, SRAM XX, XO, DB5, DB3, DB1 and SRAM Level TL disc brakes. Additionally, its superior braking power makes this model the perfect choice of replacement for your old or worn out existing pads.Features: Compatibility: Avid Elixir 9, 7, 5, 3, 1, CR, R; SRAM XX, XO, DB5, DB3, DB1 and SRAM Level TL disc brakes Pad Type: SinteredBuy Kool Stop Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Hope Disc Brake Mount Adapters - Black - Rear 203mm, Black
  • £17.49

Hope Disc Brake Mount AdaptersReplacement Hope disc brake adaptor, with multiple options allowing you to convert either Post mount, IS mount or Flat mount brakes to suit different size rotors.Please note: Bolts can be black or silverMaterial: AluminiumBrake Type: disc BrakeNote: PM – Post Mount, IS – International Standard Mount, FM – Flat Mount

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DMR Brendog Death Grip MTB Grips - Gul Yellow - 135mm, Gul Yellow
  • £17.49
  • RRP £21.00
  • Saving you £17

DMR Brendog Death Grip MTB GripsThese grips are the result of a collaboration between DMR Bikes and Brendog (Brendan Fairclough). By combining an ergonomic mountain bike grip with a waffle section for better hold and a mushroomed thumb area, DMR's Brendog Death Grip MTB Grips are an excellent all-round grip for all-mountain, enduro and downhill riding.Features:  Grip Type: MTB  Knurl pattern makes for the best all-weather surface for your palm  The waffle section provides additional grip at the frontMushroomed thumb area is really soft and malleableA tough closed end to protect your barsInner grip area is flanged to provide hand security  Pair of two grips    Weight: 100g (pair)Buy DMR Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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DMR Brendog Death Grip MTB Grips - Marble Pink - 135mm, Marble Pink
  • £17.49
  • RRP £21.00
  • Saving you £17

DMR Brendog Death Grip MTB GripsThese grips are the result of a collaboration between DMR Bikes and Brendog (Brendan Fairclough). By combining an ergonomic mountain bike grip with a waffle section for better hold and a mushroomed thumb area, DMR's Brendog Death Grip MTB Grips are an excellent all-round grip for all-mountain, enduro and downhill riding.Features:  Grip Type: MTB  Knurl pattern makes for the best all-weather surface for your palm  The waffle section provides additional grip at the frontMushroomed thumb area is really soft and malleableA tough closed end to protect your barsInner grip area is flanged to provide hand security  Pair of two grips    Weight: 100g (pair)Buy DMR Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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DMR Brendog Death Grip MTB Grips - Marble Red - 135mm, Marble Red
  • £17.49
  • RRP £21.00
  • Saving you £17

DMR Brendog Death Grip MTB GripsThese grips are the result of a collaboration between DMR Bikes and Brendog (Brendan Fairclough). By combining an ergonomic mountain bike grip with a waffle section for better hold and a mushroomed thumb area, DMR's Brendog Death Grip MTB Grips are an excellent all-round grip for all-mountain, enduro and downhill riding.Features:  Grip Type: MTB  Knurl pattern makes for the best all-weather surface for your palm  The waffle section provides additional grip at the frontMushroomed thumb area is really soft and malleableA tough closed end to protect your barsInner grip area is flanged to provide hand security  Pair of two grips    Weight: 100g (pair)Buy DMR Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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DMR Brendog Death Grip MTB Grips - Red - 135mm, Red
  • £17.49
  • RRP £21.00
  • Saving you £17

DMR Brendog Death Grip MTB GripsThese grips are the result of a collaboration between DMR Bikes and Brendog (Brendan Fairclough). By combining an ergonomic mountain bike grip with a waffle section for better hold and a mushroomed thumb area, DMR's Brendog Death Grip MTB Grips are an excellent all-round grip for all-mountain, enduro and downhill riding.Features:  Grip Type: MTB  Knurl pattern makes for the best all-weather surface for your palm  The waffle section provides additional grip at the frontMushroomed thumb area is really soft and malleableA tough closed end to protect your barsInner grip area is flanged to provide hand security  Pair of two grips    Weight: 100g (pair)Buy DMR Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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DMR Brendog Death Grip Flangeless MTB Grips - Gum - 135mm, Gum
  • £17.49
  • RRP £21.00
  • Saving you £17

DMR Brendog Death Grip Flangeless MTB GripsThese Brendog Death Grip mountain bike grips are the perfect choice for downhill, enduro and all-mountain riders. Designed using feedback from the stylish pro freerider Brendan Fairclough, these grips give you the secure hold and hand grip you need to carve up the trails.Excellent Grip and ComfortFeaturing a simple, flangeless design, Brendog’s Death Grips combine a waffle pattern with a knurled one, giving you the option to mount the grips with the grip type you prefer on the top or bottom. A mushroomed inner thumb section helps to disperse shocks and vibrations.Reasons to Buy:Perfect choice for downhill, enduro and all-mountain riders.Designed with pro freerider Brendan Fairclough.Simple, flangeless design.Disperses shocks and vibrations.Features:Material: Single density soft Kraton rubberUse: MTBType: Flangeless gripLength: 135mm (including lock ring)Tapered Core means no need for outer lock ringInner lock rings includedKnurl pattern makes for the best all-weather surface for your palmThe waffle section provides additional grip at the frontMushroomed thumb area is very soft and malleableA tough closed end to protect your barsPair of gripsWeight: 100g (pair)Buy DMR Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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DMR Brendog Death Grip Flangeless MTB Grips - Miami - 135mm, Miami
  • £17.49
  • RRP £21.00
  • Saving you £17

DMR Brendog Death Grip Flangeless MTB GripsThese Brendog Death Grip mountain bike grips are the perfect choice for downhill, enduro and all-mountain riders. Designed using feedback from the stylish pro freerider Brendan Fairclough, these grips give you the secure hold and hand grip you need to carve up the trails.Excellent Grip and ComfortFeaturing a simple, flangeless design, Brendog’s Death Grips combine a waffle pattern with a knurled one, giving you the option to mount the grips with the grip type you prefer on the top or bottom. A mushroomed inner thumb section helps to disperse shocks and vibrations.Reasons to Buy:Perfect choice for downhill, enduro and all-mountain riders.Designed with pro freerider Brendan Fairclough.Simple, flangeless design.Disperses shocks and vibrations.Features:Material: Single density soft Kraton rubberUse: MTBType: Flangeless gripLength: 135mm (including lock ring)Tapered Core means no need for outer lock ringInner lock rings includedKnurl pattern makes for the best all-weather surface for your palmThe waffle section provides additional grip at the frontMushroomed thumb area is very soft and malleableA tough closed end to protect your barsPair of gripsWeight: 100g (pair)Buy DMR Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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DMR Brendog Death Grip Flangeless MTB Grips - Marble Pink - 135mm, Marble Pink
  • £17.49
  • RRP £21.00
  • Saving you £17

DMR Brendog Death Grip Flangeless MTB GripsThese Brendog Death Grip mountain bike grips are the perfect choice for downhill, enduro and all-mountain riders. Designed using feedback from the stylish pro freerider Brendan Fairclough, these grips give you the secure hold and hand grip you need to carve up the trails.Excellent Grip and ComfortFeaturing a simple, flangeless design, Brendog’s Death Grips combine a waffle pattern with a knurled one, giving you the option to mount the grips with the grip type you prefer on the top or bottom. A mushroomed inner thumb section helps to disperse shocks and vibrations.Reasons to Buy:Perfect choice for downhill, enduro and all-mountain riders.Designed with pro freerider Brendan Fairclough.Simple, flangeless design.Disperses shocks and vibrations.Features:Material: Single density soft Kraton rubberUse: MTBType: Flangeless gripLength: 135mm (including lock ring)Tapered Core means no need for outer lock ringInner lock rings includedKnurl pattern makes for the best all-weather surface for your palmThe waffle section provides additional grip at the frontMushroomed thumb area is very soft and malleableA tough closed end to protect your barsPair of gripsWeight: 100g (pair)Buy DMR Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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DMR Brendog Death Grip Flangeless MTB Grips - Red - 135mm, Red
  • £17.49
  • RRP £21.00
  • Saving you £17

DMR Brendog Death Grip Flangeless MTB GripsThese Brendog Death Grip mountain bike grips are the perfect choice for downhill, enduro and all-mountain riders. Designed using feedback from the stylish pro freerider Brendan Fairclough, these grips give you the secure hold and hand grip you need to carve up the trails.Excellent Grip and ComfortFeaturing a simple, flangeless design, Brendog’s Death Grips combine a waffle pattern with a knurled one, giving you the option to mount the grips with the grip type you prefer on the top or bottom. A mushroomed inner thumb section helps to disperse shocks and vibrations.Reasons to Buy:Perfect choice for downhill, enduro and all-mountain riders.Designed with pro freerider Brendan Fairclough.Simple, flangeless design.Disperses shocks and vibrations.Features:Material: Single density soft Kraton rubberUse: MTBType: Flangeless gripLength: 135mm (including lock ring)Tapered Core means no need for outer lock ringInner lock rings includedKnurl pattern makes for the best all-weather surface for your palmThe waffle section provides additional grip at the frontMushroomed thumb area is very soft and malleableA tough closed end to protect your barsPair of gripsWeight: 100g (pair)Buy DMR Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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DMR Brendog Death Grip Flangeless MTB Grips - Snow Camo - 135mm, Snow Camo
  • £17.49
  • RRP £21.00
  • Saving you £17

DMR Brendog Death Grip Flangeless MTB GripsThese Brendog Death Grip mountain bike grips are the perfect choice for downhill, enduro and all-mountain riders. Designed using feedback from the stylish pro freerider Brendan Fairclough, these grips give you the secure hold and hand grip you need to carve up the trails.Excellent Grip and ComfortFeaturing a simple, flangeless design, Brendog’s Death Grips combine a waffle pattern with a knurled one, giving you the option to mount the grips with the grip type you prefer on the top or bottom. A mushroomed inner thumb section helps to disperse shocks and vibrations.Reasons to Buy:Perfect choice for downhill, enduro and all-mountain riders.Designed with pro freerider Brendan Fairclough.Simple, flangeless design.Disperses shocks and vibrations.Features:Material: Single density soft Kraton rubberUse: MTBType: Flangeless gripLength: 135mm (including lock ring)Tapered Core means no need for outer lock ringInner lock rings includedKnurl pattern makes for the best all-weather surface for your palmThe waffle section provides additional grip at the frontMushroomed thumb area is very soft and malleableA tough closed end to protect your barsPair of gripsWeight: 100g (pair)Buy DMR Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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