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

Shimano Deore M4100 2x10 Speed Front Derailleur - Side Pull Low Clamp}
  • £25.99
  • RRP £29.99
  • Saving you £13

Shimano M4100 Deore 10Sp Double Front DerailleurBringing even more adventure to your outdoor lifestyle, this front mech offers improved chain stability and sharp shifting on the trails. It features a robust alloy construction with a reinforced steel chain guide, which makes it more than ready for any off-road ride. Designed with modern trail bikes in mind, Shimano has equipped this model with Side Swing technology, which increases tyre clearance while its cable routing results in the lightest shifting action yet.Features: Front Mech Material: Alloy Chain Guide Material: Reinforced Steel Use: MTB Speed: 10 speed Mounting Options: Direct mount, E-type and Low Clamp options available to select Chainline: Chainline both 48.8/51.8mmMax Chainring: For double 38 tooth max chainringPivot Link: Wide pivot link designCable Routing: Side pull cable routing Single or Pair: Single Part Number: Direct Mount: FDM4100D4; E-Type: FDM4100E4; Low Clamp: FDM4100MX4Technologies: Side Swing: Side swing, side pull front derailleur decrease problems with tyre clearance and reduces cable friction. Designed specifically with modern trail bikes in mind, Shimano side swing technology front derailleurs increases tyre clearance, while cable routing resulting in the lightest shifting action yet. Wide Pivot Link: Wide pivot link design for greater torsional rigidity improves shifting response and service life.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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GOREWEAR Shield Arm Warmers SS23 - Black - XL/XXL}, Black
  • £25.99
  • RRP £39.99
  • Saving you £35

GOREWEAR Shield Arm WarmersCool temperatures needn't mean you need to ditch a short-sleeve jersey, instead, pull on the GOREWEAR Shield Arm Warmers and enjoy protection from cold winds and unexpected rain showers.Made from windproof and water-resistant GORE-TEX INFINIUM™, the Shield Arm Warmers let you extend the temperature range and riding conditions in which you can wear short-sleeved cycling jerseys. The 4-way stretch fabric and pre-shaped elbows let you enjoy unhindered flexibility on the bike while also enjoying extra weather protection when conditions are cold and damp.Elastic cuffs, with silicone grippers, keep the warmers in place and the use of flatlock seams prevent irritation. While excellent at preventing cold wind getting in and at fending off a rain shower, the high degree of breathability ensures there's minimal sweat build-up when riding hard. Features:Materials: 92% Polyester, 8% ElastaneGORE-TEX INFINIUM™ fabrics with GORE® WINDSTOPPER® product technology4-way stretch fabricElastic cuff at top edge with silicone grippers provides optimal fit and comfortFlatlock seamsReflective transfer print to mark right and leftHigh moisture managementPre-shaped elbowsReflective logoSold as a pairBuy GOREWEAR Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.

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GOREWEAR Shield Arm Warmers SS23 - Black - XS/S}, Black
  • £25.99
  • RRP £39.99
  • Saving you £35

GOREWEAR Shield Arm WarmersCool temperatures needn't mean you need to ditch a short-sleeve jersey, instead, pull on the GOREWEAR Shield Arm Warmers and enjoy protection from cold winds and unexpected rain showers.Made from windproof and water-resistant GORE-TEX INFINIUM™, the Shield Arm Warmers let you extend the temperature range and riding conditions in which you can wear short-sleeved cycling jerseys. The 4-way stretch fabric and pre-shaped elbows let you enjoy unhindered flexibility on the bike while also enjoying extra weather protection when conditions are cold and damp.Elastic cuffs, with silicone grippers, keep the warmers in place and the use of flatlock seams prevent irritation. While excellent at preventing cold wind getting in and at fending off a rain shower, the high degree of breathability ensures there's minimal sweat build-up when riding hard. Features:Materials: 92% Polyester, 8% ElastaneGORE-TEX INFINIUM™ fabrics with GORE® WINDSTOPPER® product technology4-way stretch fabricElastic cuff at top edge with silicone grippers provides optimal fit and comfortFlatlock seamsReflective transfer print to mark right and leftHigh moisture managementPre-shaped elbowsReflective logoSold as a pairBuy GOREWEAR Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Topeak Master Blaster Road Frame Pump - Silver - XL: 59-64 cm / 23.2"u201d-25.2"u201d, Silver
  • £25.99

Topeak Master Blaster Road Frame Pump The Master Blaster is a modern take on the classic frame-fit pump design. The long machine-cut aluminum barrel that can inflate to high pressures of 160PSI; it is perfect for road cycling pressure requirements.Features:Integrated seal and dust capPadded pump head with internal handle lock for easy gripping, handling and pumpingDurable aluminium thumb-lockMachine cut, sleek aluminium barrel; durable and lightweightWeights: Small: 208g / Medium: 229g / Large: 250g / XLarge: 270g* Please choose the right size pump for your frame size.Buy Topeak Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Hutchinson Intensive 2 Hardskin Road Tyre - Black - Folding Bead, Black
  • £25.99
  • RRP £34.99
  • Saving you £26

Hutchinson Intensive 2 Hardskin Road TyreThe Intensive 2 is designed for durability, comfort and safety. Its polyamide anti-puncture casing reinforcement makes it highly resistant to punctures.Additionally, its Hardskin reinforcement protects the sidewalls against cuts and abrasions. It has a dual compound tread that offers grip when cornering and efficiency when riding on top of the tyre. It's durable and an all-weather performer.Features:All-weather training tyre with very good grip  Very high puncture resistance (casing protection) Hardskin reinforcement protects the sidewall casing Tread compound ensures durability Quality Made in France Specifications: TPI: 66 Weight: 220g (23)/230g (25)Buy Hutchinson Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Continental Contact Urban Tyre - Black - Reflex - 28", Black - Reflex
  • £25.99
  • RRP £39.99
  • Saving you £35

Continental Contact Urban TyreWhether you're commuting around the city or planning a long tour, this versatile tyre is equipped for road bike adventures. It features Continental's Safety Pro casing that delivers fast-rolling performance with improved comfort on every ride. Designed from nylon textile material and cross-woven fibre netting, this model's casing construction is robust and flexible. This also means that you'll benefit from maximum puncture protection with minimal weight added to your road bike. One final highlight is its reflective sidewall, which ensures that you'll stay visible to other road users when cycling in low light conditions.Features: Casing: Safety Pro Use: Commuting, Touring and E-bike (up to 50km/h) Tubeless Ready: No TPI: 180 Bead: Rigid Wheel Size: Multiple options available to select Reflective sidewall Max PSI: 16x1.35: 116; 700x55 (29"): 65 Weight: 16x1.35: 275g; 700x55 (29"): 720gTechnologies: Safety Pro: Cross-woven textile fibre netting that is simultaneously robust and flexible. Maximum puncture protection with minimal added weight. The risk of punctures resulting from glass or sharp stones is substantially reduced. The Safety Pro features in the CONTACT Urban range and gives the tyre a safety rating of 6/7, compared with the previous rating for our older CONTACT tyres which was 4/7. The Safety Pro is only bettered by the Safety Plus (7/7) which is a substantially heavier system for our CONTACT Plus range. ECO50: Some models, such as the TopContact II, also have the ECE-R 75 test label which authorizes use on fast e-bikes up to 50 km/h.Buy Continental Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Topeak Master Blaster Road Frame Pump - Silver - M: 49-54 cm / 19.3"u201d-21.3"u201d, Silver
  • £25.99

Topeak Master Blaster Road Frame Pump The Master Blaster is a modern take on the classic frame-fit pump design. The long machine-cut aluminum barrel that can inflate to high pressures of 160PSI; it is perfect for road cycling pressure requirements.Features:Integrated seal and dust capPadded pump head with internal handle lock for easy gripping, handling and pumpingDurable aluminium thumb-lockMachine cut, sleek aluminium barrel; durable and lightweightWeights: Small: 208g / Medium: 229g / Large: 250g / XLarge: 270g* Please choose the right size pump for your frame size.Buy Topeak Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Topeak Master Blaster Road Frame Pump - Silver - L: 54-59 cm / 21.3"u201d-23.2"u201d, Silver
  • £25.99

Topeak Master Blaster Road Frame Pump The Master Blaster is a modern take on the classic frame-fit pump design. The long machine-cut aluminum barrel that can inflate to high pressures of 160PSI; it is perfect for road cycling pressure requirements.Features:Integrated seal and dust capPadded pump head with internal handle lock for easy gripping, handling and pumpingDurable aluminium thumb-lockMachine cut, sleek aluminium barrel; durable and lightweightWeights: Small: 208g / Medium: 229g / Large: 250g / XLarge: 270g* Please choose the right size pump for your frame size.Buy Topeak Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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HIGH5 Energy Gels Variety Box 38g x 20
  • £25.99

HIGH5 Energy Gels Variety Box (20 x 38g)These HIGH5 Energy Gels have a smooth, light consistency and contain a dash of real juice for a great taste. Unlike other energy gels, the High5 Energy Gel is neither thick nor overly sweet. Easy to open and swallow, each sachet contains 23g of fast-acting carbohydrate. HIGH5's Energy Gels are award-winning, having been proven in many of the World's toughest competitions.In the BoxThe HIGH5 Energy Gels Variety Box includes 20 gels in a variety of flavours. Gels included may differ from those shown in the product image.Directions for UseTake up to 3 sachets per hour, less if you are also using a sports drink.Nutritional Information AppleBanana CitrusOrangeSummer FruitsPer 38g GelPer 38g GelPer 38g GelPer 38g GelPer 38g GelEnergy (kJ/Kcal)379/91377/90376/90376/90376/90Fat (g)00000of which Saturates (g)00000Carbohydrates (g)2323232323of which Sugars (g)33333Dietary Fibre (g)00000Protein (g)0000.10Salt (g)0.050.050.050.10.05IngredientsApple: Glucose, Water, Maltodextrin, Fruit Juice (apple), Acidity Regulators (Malic Acid, Tri Sodium Citrate, Citric Acid), Sea Salt, Preservatives (Potassium Sorbate, Sodium Benzoate), Natural Flavouring.Banana: Maltodextrin, Whey Protein Isolate 30% (Milk), Sucrose, fructose, Dextrose, Natural Flavourings: (Blackcurrant, Raspberry, Strawberry, Blackberry, Blueberry) Food Acid Malic Acid, Emulsifier: Soy Lecithin.Citrus: Glucose, Water, Maltodextrin, Fruit Juice (Lemon, Lime) Acidity Regulator, (Tri Sodium Citrate), Sea Salt, Preservatives (Potassium Sorbate), Natural Flavouring.Orange: Glucose, Water, Maltodextrin, Fruit Juice (Orange, Lemon), Acidity Regulator (Tri Sodium Citrate, Citric acid), Sea Salt, Preservatives (Potassium Sorbate, sodium Benzoate) Natural Flavouring.Summer Fruits: Glucose, Water, Maltodextrin, Fruit Juice, (Cranberry, Raspberry), Natural Flavouring, Acidity regulators (Tri Sodium Citrate, Citric Acid), Sea Salt, Preservatives (Potassium Sorbate, Sodium Benzoate).Allergen Information: For allergen information see ingredients in bold.Features23g of carbohydrate per gelCaffeine freeEasy to carry and openRace proven in the World's toughest competitionsReal juice flavours for a light refreshing tasteVariety of flavours includedSuitable for vegetariansNot suitable for vegansBuy HIGH5 Energy from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Avid Disc Brake Caliper Spacers and Hardware - Black - Front 180/Rear 160 - Standard}, Black
  • £25.99
  • RRP £55.00
  • Saving you £53

Avid Disc Brake Caliper Spacers and HardwareDisc brake caliper mounting towers for CPS and Standard calipers. Features:Front 180/Rear 160 - CPS - Ti BoltsFront 180/Rear 160 - CPS/Std - Stainless Steel BoltsFront 180/Rear 160 - Std - Ti BoltsIncludes stainless caliper mounting bolts (CPS & Standard)Buy Avid Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Sora HG50 9 Speed Road Cassette - Silver - 14-25t}, Silver
  • £25.99
  • RRP £34.99
  • Saving you £26

Shimano Sora HG50 9 Speed Road CassetteWith its nickel-plated sprockets that also have Shimano's Hyperglide technology, this Sora cassette is an ideal choice for your 9-speed road bike drivetrain. Benefiting from CAD design on the sprocket's teeth and contoured shifting gates, it delivers clean gear changes even under hard pedalling. Highly durable and corrosion resistant, its tight tooth steps between the sprockets gives you a smooth cadence as you build up your speed on the flat or attack a steep climb.Features:  Use: Road  Speed: 9-speed  Compatibility: Shimano style 9-11 speed freehubs/9-speed road drivetrains    Sprockets are cut away and drilled to reduce weight without reducing rigidityCorrosion-resistant steel cassette lockringUse with super narrow 9-speed HG chains for optimal performanceWeight: 270g (12-23T)  Manufacturer Reference Codes:13-25T: CSHG509325; 12-25T: CSHG509225; 14-25T: CSHG509425; 11-30T: CSHG509130A 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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Funn Full On Riser Handlebar - Red - 31.8mm, Red
  • £25.99
  • RRP £39.99
  • Saving you £35

Funn Full On Riser Handlebar This superb riser is perfect for MTB use as it offers amazing comfort and control as you dominate your way across the mountain. It features a triple-butted AL6061 aluminium construction which shaves off any unnecessary weight, so you can enjoy its amazing strength without worry about being weighed down. What's most impressive is its extreme-performance material is shaped exactly like the Kingpin riser bars for incredible durability as you conquer every trail. Sandblasted MTB Riser BarHelping you achieve your off-road goals, this solid version has also been finished with Funn's sandblasting process. This means you'll enjoy greater fatigue resistance against the elements and weather when taking on longer all-day epics in unpredictable conditions. Perfect for riders who want to go the extra mile, this is the ultimate choice of upgrade for all-year-round riding. Features: Material: Triple-butted AL6061 Aluminium Finish: Sandblasted Use: MTB Diameter: 31.8mmBuy Funn Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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The North Face Horizon Short SS20 - Dune Beige - 30}, Dune Beige
  • £25.99
  • RRP £45.00
  • Saving you £42

Horizon ShortIf you enjoy taking to the outdoors in sweat-inducing climates, then The North Face's Horizon Short are a fail-safe option for staying cool, dry and protected.Rugged and hardwearing thanks to its durable ripstop fabric construction, the Horizon Short from The North Face boast a cargo-inspired design and feature FlashDry™ technology, which makes them actively quick-drying and sweat-wicking. A gusseted crotch also aids mobility, while multiple pockets, some with Velcro® closures, provide plenty of storage options for valuables. Plus, a Durable Water-Repellent (DWR) finish and ultraviolet UPF 50 protection keeps excess water and harmful rays at bay.Features:Lightweight, breathable, abrasion-resistant 100% nylon ripstopFlashDry™ technologyFixed waist with belt loops2 front open hand pockets2 large cargo pockets with Velcro® closure1 back pocket with Velcro® closureCrotch gusset for improved mobilityDurable Water-Repellent (DWR) finishUltraviolet protection factor UPF 50Buy The North Face from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Sora HG50 9 Speed Road Cassette - Silver - 13-25t}, Silver
  • £25.99
  • RRP £34.99
  • Saving you £26

Shimano Sora HG50 9 Speed Road CassetteWith its nickel-plated sprockets that also have Shimano's Hyperglide technology, this Sora cassette is an ideal choice for your 9-speed road bike drivetrain. Benefiting from CAD design on the sprocket's teeth and contoured shifting gates, it delivers clean gear changes even under hard pedalling. Highly durable and corrosion resistant, its tight tooth steps between the sprockets gives you a smooth cadence as you build up your speed on the flat or attack a steep climb.Features:  Use: Road  Speed: 9-speed  Compatibility: Shimano style 9-11 speed freehubs/9-speed road drivetrains    Sprockets are cut away and drilled to reduce weight without reducing rigidityCorrosion-resistant steel cassette lockringUse with super narrow 9-speed HG chains for optimal performanceWeight: 270g (12-23T)  Manufacturer Reference Codes:13-25T: CSHG509325; 12-25T: CSHG509225; 14-25T: CSHG509425; 11-30T: CSHG509130A 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 Cassette & C-Lock Lockring Tool - Black, Black
  • £25.99

Shimano Cassette & C-Lock Lockring ToolA workshop essential from Shimano, this Cassette & C-Lock Lockring Tool can be used to remove and tighten lockrings without any hassle. Features:Suitable for use with Centre-Lock Disc rotors and Hyperglide (HG) cassettesLarge internal diameter that can fit over axle locknutsCan be used with 1/2-inch drive torque wrench or ratchet driverA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Workshop from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Selle Italia Shock Absorber Kit Bar Tape - White, White
  • £25.99
  • RRP £39.99
  • Saving you £35

Selle Italia Shock Absorber Kit Bar TapeDesigned to keep vibrations and shocks at a minimum, this superb Shock Absorber bar tape kit combines textured bar tape with triple layer gel bar pads to dampen the most severe vibrations around your hands. The SG-Tape is made up of a diamond-patterned top material for a breathable and grippy holding surface and its thick central foam layer provides quality cushioning for a truly ergonomic experience. Constructed using gel, polyurethane and Lycra, the bar pads offer a memory-foam like feel for unrivalled steering comfort. Features: Material: SG Tape: Lycra with Polyurethane (PU) Foam padding, Pads: Triple layer Gel Single or Pair: Pair (enough length for all drop bar sizes) Gel or Tape: Tape with PU Foam layer Bar End Plugs Included: Yes Buy Selle Italia Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Zipp Service Course 70 Ergo Handlebar - Beyond Black - 31.8mm, Beyond Black
  • £25.99
  • RRP £43.99
  • Saving you £41

Zipp Service Course 70 Ergo HandlebarThis bar has been designed to match all riders with a high-performance, precise fitting bar. The Service Course-70 Ergo features trickle-down innovation from the Service Course SL-70. That includes the drop dimensions and a contoured top for a natural ergonomic grip on the bar tops for all-day comfort. The Service Course-70 Ergo's specially tuned drop shape creates comfortable hand positions. The short 70mm reach makes it easier to control brake and shift levers, which is vital for race situations. Its 128mm drop places the rider aerodynamically low and in control without compromising comfort. Features:  Material: 6061 Aluminium  Size: Centre to Centre  Reach: 70mm  Clamp Diameter: 31.8mm  Clip Compatible: No  Drop: 128mm  Ramp Angle: 10°  Drop Outsweep: 4°  Weight: 305gBuy Zipp Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Endura Women's FS260 Pro Aerogel Mitts - Black - XL}, Black
  • £25.99
  • RRP £39.99
  • Saving you £35

Endura Women’s FS260 Pro Aerogel MittsPacked with features for the ultimate in hand comfort in the saddle, the Women’s FS260 Pro Aerogel Mitts from Endura fit perfectly over the hand without distractions, thanks to a Velcro-assisted secure fit and stretchy fabric. These short-finger gloves help with comfortable grip at the handlebars via silicone grip prints and Palmistry gel padding in the palm, which helps deal with the pain of nerve compression during longer rides. The package is rounded out by a terry sweat wipe for an overworked brow.Features:Material: 35% Polyamide, 30% Polyester, 25% Polyurethane, 10% ElastaneWicking, high stretch back hand panels ensure fantastic fitPalmistry™ technology with perforated gel padding and open ventingSilicone palm print for gripFinger tabs for easy glove removalVelcro adjuster strap for secure fitTerry sweat wipeBuy Endura Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Zipp Service Course 70 Ergo Handlebar - Polished Black - 31.8mm, Polished Black
  • £25.99
  • RRP £43.99
  • Saving you £41

Zipp Service Course 70 Ergo HandlebarThis bar has been designed to match all riders with a high-performance, precise fitting bar. The Service Course-70 Ergo features trickle-down innovation from the Service Course SL-70. That includes the drop dimensions and a contoured top for a natural ergonomic grip on the bar tops for all-day comfort. The Service Course-70 Ergo's specially tuned drop shape creates comfortable hand positions. The short 70mm reach makes it easier to control brake and shift levers, which is vital for race situations. Its 128mm drop places the rider aerodynamically low and in control without compromising comfort. Features:  Material: 6061 Aluminium  Size: Centre to Centre  Reach: 70mm  Clamp Diameter: 31.8mm  Clip Compatible: No  Drop: 128mm  Ramp Angle: 10°  Drop Outsweep: 4°  Weight: 305gBuy Zipp Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Acros AH-34 Upper Headset (EC34-28) - Black - 1.1/8", Black
  • £25.99
  • RRP £32.99
  • Saving you £21

Acros AH-34 EC34/28 Upper HeadsetPerfect for updating your existing upper headset interface, this upper headset features a hard-wearing aluminium construction. This makes it more than capable of handling all the abuse that's associated with road-racing and all-day epics on your MTB. Allowing your fork's steerer to rotate inside the frame's headtube, this lower headset is equipped with stainless steel bearings. This gives it an extra layer of durability, while its R3 seal allows it to perform in all-weather conditions. Features:Headset Material: AluminiumBearing Material: Stainless SteelSeal Material: R3 (Metal-reinforced Rubber)Use: Road, MTBSteerer Diameter: 1 1/8"Headset Type: ConventionalPart Number: 1602605R5SBuy Supacaz Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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