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 298 products listed for Chain Reaction UK, that's 298 opportunities for you to save money!

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Chain Reaction UK have 298 Prime products listed

Prime RD020 Rear Road Disc Hub - Grey - 24h, Grey
  • £48.99
  • RRP £99.99
  • Saving you £51

Prime RD020 Rear Road Disc HubPrime RD020 disc brake rear road hub features a superlight forged alloy 7075 hub body that has been CNC machined to reduce weight without compromising structural integrity. The RD020 features 4 pawls and 26-point engagement, which ensures superfast, pick up for increased acceleration and positive engagement.Our hubs run on premium Japanese sealed cartridge bearings for ultra low friction and superior bearing life comprising of two in the hub body and two in the freehub body.The freehub body has a superlight alloy construction and features our ABG (Anti Bite Guard) technology where an integrated reinforced steel rib has been incorporated to eliminate damage from driving forces placed on individual sprockets.A grease port has also been added for home maintenance to further prolong bearing life and reduce service intervals. Material: Superlight Forged & CNC machined 7075 alloy hub body Spoke Type: J bend Brake Standard: Disc Brake, Centre Lock Bearings: Premium Japanese sealed cartridge bearings x 4 2 in 1 Axle: 135mm x QR Axle Adaptors Included: No Pawls: 4 Points of Engagement: 26 Freehub Body: Light weight alloy with ABG (Anti Bite Guard), Shimano/SRAM 9/10/11 speed Freehub Body Option: Campagnolo freehub body available for purchase separately Hole Count: 24 Weight: 275g Buy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store."

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Prime RO20 Road Front Hub (Rim Brake) - Grey - 20 Holes}, Grey
  • £29.99
  • RRP £39.99
  • Saving you £25

Prime RO20 Road Front Hub (Rim Brake)This Prime R020 road front hub features a superlight forged alloy 7075 hub body that has been CNC machined to further reduce weight without compromising structural integrity. Our hubs run on premium Japanese sealed cartridge bearings for ultra low friction and superior bearing life. Material: Superlight Forged & CNC machined 7075 alloy hub body Spoke Type: J bend PCD 30mm, Flange to flange 68.7mm, Flange thickness 3.4mm, Spoke Gauge 14 Bearings: Premium Japanese sealed cartridge bearings x2 Axle: 100mm x 9mm QR Hole Count: 20 Weight: 59g Buy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime RO20 Road Rear Hub (Rim Brake) - Grey - 24 Holes}, Grey
  • £62.99
  • RRP £79.99
  • Saving you £21

Prime RO20 Road Rear Hub (Rim Brake)This Prime R020 rear road hub features a superlight forged alloy 7075 hub body that has been CNC machined to further reduce weight without compromising structural integrity. A grease port has been added for home maintenance to further prolong bearing life and reduce service intervals.Our hubs run on premium Japanese sealed cartridge bearings for ultra low friction and superior bearing life comprising of two in the hub body and two in the freehub body.The freehub body has a superlight alloy construction and features our ABG (Anti Bite Guard) technology where an integrated reinforced steel rib has been incorporated to eliminate damage from driving forces placed on individual sprockets.The R020 features 4 pawls and 26 point engagement which ensures superfast pick up for increased acceleration and positive engagement. Material: Superlight Forged & CNC machined 7075 alloy hub body Spoke Type: J-Bend PCD 41/49mm, Flange to flange 56.6mm, Flange thickness 3.3mm, drive side offset 10.2mm, Spoke Gauge 14 Bearings: Premium Japanese sealed cartridge bearings x4 Axle: 130mm x QR Pawls: 4 Points of Engagement: 26 Freehub Body: Lightweight alloy with ABG (Anti Bite Guard), Shimano/SRAM 9/10/11 speed Freehub Body Option: Campagnolo freehub body available for purchase separately Hole Count: 24 Weight: 230g Buy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime RD010-R010 Anti Bite Guard Freehub Body
  • £19.99
  • RRP £24.99
  • Saving you £20

Prime RD010-R010 Anti Bite Guard Freehub BodyThis lightweight CNC alloy freehub body features an integrated reinforced steel rib to eliminate damage from cassette sprockets. Additional features include 2x Premium Japanese sealed cartridge bearings and a grease port for home maintenance, which will prolong the life of the bearings.Genuine Prime replacement freehub body with ABG technology for RD010 & R010 hubs. Lightweight CNC alloy constructionHigh quality Japanese double sealed cartridge bearingsABG (Anti Bite Guard) technologyGrease portIncludes pawls and springBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime RD010-R010-RD020-R020 Hub Pawls + Spring
  • £4.99

Prime RD010-R010-RD020-R020 Hub Pawls + SpringGenuine Prime replacement parts for Prime rear hubs.Kit comprises of 4 pawls and 1springSuitable for RD010/R010/RD020/R020 modelsBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime RD010 Front Hub Conversion Kit 12x100mm
  • £5.49
  • RRP £7.49
  • Saving you £27

Prime RD010 Front Hub Conversion Kit 12x100mmGenuine Prime conversion kit for RD010 front hubs. Converts front hub to 12mm x 100mm through axle standardCNC alloy constructionBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime RD010 Rear Hub Conversion Kit 12x142mm
  • £5.99
  • RRP £7.49
  • Saving you £20

Prime RD010 Rear Hub Conversion Kit 12x142mmGenuine Prime conversion kit for RD010 rear hubs. Converts rear hub to 12mm x 142mm through axle standardCNC alloy constructionBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime RD010 Rear Hub Conversion Kit QRx135mm
  • £5.99
  • RRP £7.49
  • Saving you £20

Prime RD010 Rear Hub Conversion Kit QRx135mmGenuine Prime conversion kit for RD010 rear hubs. Converts rear hub to 135mm x QR axle standardCNC alloy constructionBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime RD010 Front Hub Conversion Kit 15x100mm
  • £5.99
  • RRP £7.49
  • Saving you £20

Prime RD010 Front Hub Conversion Kit 15x100mmGenuine Prime conversion kit for RD010 front hubs. Converts front hub to 15mm x 100mm through axle standardCNC alloy constructionBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime RD010 Front Hub Conversion Kit QRx100mm
  • £5.99
  • RRP £7.49
  • Saving you £20

Prime RD010 Front Hub Conversion Kit QRx100mmGenuine Prime conversion kit for RD010 front hubs. Converts front hub to QR x 100mm through axle standardCNC alloy constructionBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime RD020 Front Hub Conversion Kit 12x100mm
  • £5.99
  • RRP £7.49
  • Saving you £20

Prime RD020 Front Hub Conversion Kit 12x100mmGenuine Prime conversion kit for RD020 front hubs. Please Note: This part is only compatible with Prime front wheels with the centrelock type front hub.Converts front hub to 12mm x 100mm through axle standardCNC alloy constructionBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime RD020 Front Hub Conversion Kit QRx100mm
  • £5.99
  • RRP £7.49
  • Saving you £20

Prime RD020 Front Hub Conversion Kit QRx100mmGenuine Prime conversion kit for RD020 front hubs.Converts front hub to QR x 100mm axle standardCNC alloy constructionBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime R020 Anti Bite Guard Freehub Body
  • £19.99
  • RRP £24.99
  • Saving you £20

Prime R020 Anti Bite Guard Freehub BodyThis lightweight CNC alloy freehub body has an integrated reinforced steel rib to eliminate damage from cassette sprockets. Additional features include 2x Premium Japanese sealed cartridge bearings and a grease port for home maintenance which will prolong the life of the bearings. Genuine Prime replacement freehub body with ABG technology for R020 hubs.Lightweight CNC alloy constructionHigh quality Japanese double sealed cartridge bearingsABG (Anti Bite Guard) technologyGrease portIncludes pawls and springBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime RD020 Anti Bite Guard Freehub Body
  • £19.99
  • RRP £24.99
  • Saving you £20

Prime RD020 Anti Bite Guard Freehub BodyThis lightweight CNC alloy freehub body has an integrated reinforced steel rib to eliminate damage from cassette sprockets. Additional features include 2 x Premium Japanese sealed cartridge bearings and a grease port for home maintenance, which will prolong the life of the bearings.Genuine Prime replacement freehub body with ABG technology for RD020 hubs.Lightweight CNC alloy constructionHigh quality Japanese double sealed cartridge bearingsABG (Anti Bite Guard) technologyGrease portIncludes pawls and springBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime RD010 - RD020 Freehub Body - Campagnolo
  • £19.99
  • RRP £24.99
  • Saving you £20

Prime RD010 - RD020 Freehub Body - CampagnoloThe Prime RD020 Freehub Body is a lightweight CNC alloy freehub body for Campagnolo standard cassettes. Additional features include 2 x Premium Japanese sealed cartridge bearings and a grease port for home maintenance, which will prolong the life of the bearings. Genuine Prime replacement freehub body with Campagnolo standard for RD010 & RD020 hubs.Lightweight CNC alloy constructionHigh quality Japanese double sealed cartridge bearingsGrease portIncludes pawls and springSuitable for RD010 & RD020 hubsBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime R010 - R020 Freehub Body - Campagnolo
  • £18.99
  • RRP £24.99
  • Saving you £24

Prime R010 - R020 Freehub Body - CampagnoloThis is a lightweight CNC alloy freehub body from Prime for Campagnolo standard cassettes. Additional features include 2 x Premium Japanese sealed cartridge bearings and a grease port for home maintenance, which will prolong the life of the bearings.Genuine Prime replacement freehub body with Campagnolo standard for R010 & R020 hubs.Lightweight CNC alloy constructionHigh quality Japanese double sealed cartridge bearingsGrease portIncludes pawls and springSuitable for R010 & R020 hubsBuy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime BlackEdition 28 Carbon Tubular Wheelset - Black Logo}, Black
  • £499.99
  • RRP £899.99
  • Saving you £44

Prime BlackEdition 28 Carbon Tubular WheelsetWhether an aspirational amateur or professional rider, the BlackEdition 28 Carbon Tubular Wheelset will provide you with the strength and stability you need to get the best out of your ride. Tested and raced by the Vitus Pro Cycling Team, the shallow rim and linear contour with the tyre helps reduce rotational weight and increase aerodynamics, making them a fantastic option for climbers as well as long distance riders. With a CNC machined R010 6061 hubset and DT Swiss straight pull spokes, the BlackEdition 28 Carbon Tubular Wheelset is super stiff and has a strength to weight ratio that will tame the steepest of climbs and the most technical of descents.  Bundled with Prime QR Skewers, spare spokes and nipples, and a 10 Speed adapter, the BlackEdition 28 is a brilliant carbon tubular wheelset, tested by Pros for quality and performance assurance.  Features: Rim Material: T800 UD carbon fibre Rim Width: 25mm (external) Rim Depth: 28mm Hubs: R010, CNC machined 6061 alloy hub body Freehub: Shimano/SRAM 9/10/11 speed Spokes: DT Aerolite (non-drive), DT Aero Comp (drive side) Hub Bearings: Front: 2x 699, Rear: 1x 15267 & 1x 6802, Freehub: 2x 15267 UCI approved Backed by Prime Crash Replacement Programme Rider Weight Limit: 100kg Weight:  Front: 534g; Rear: 699g; Pair: 1233gIn The Box: Prime Carbon Brake Pads Prime QR skewers 4 spare spokes and nipples 10-Speed adapterPrime Crash Replacement ProgrammeAt Prime we understand that a crash or unexpected accident may occur under normal riding conditions. If in the event of a fall or accident where your Prime product sustains damage beyond repair, you can return the damaged component in exchange for a new product at 40% off the RRP. Please note that the Prime Crash Replacement Programme is only valid for the original purchaser within 2 years of purchase.Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime PrimaXC MTB Handlebar 2022 - Black - 780mm, Black
  • £54.99
  • RRP £109.99
  • Saving you £50

Prime PrimaXC MTB HandlebarFine-tuned for precise steering performance, this versatile handlebar is ready for everything from competing in a cross country (XC) racing event to exploring new off-road routes on your mountain bike. Prime has kitted it out with a T800 unidirectional (UD) carbon construction, which gives it the best balance of stiffness and durability while keeping its overall weight to a minimum. Another highlight is its 3K weave on its bar ends to deliver additional strength to the end of the bars.Race Ready GeometryKeeping you comfortable and supported with every turn, this MTB handlebar is equipped with 9 degrees of backsweep, zero degrees upsweep and a 4.8mm rise to give a perfect flat top section on the bar. This combination provides increased comfort and smooth steering wherever your next ride takes you.Carbon Fibre XC HandlebarBenefitting from a 780mm width, this handlebar is also cuttable using the printed cut-down scale. Featuring increments that are printed on its body, you can easily cut the handlebar to suit your exact steering requirements and riding style if needed. Prime has also finished this model with a fibre painted grip and a stem clamping area for maximum security and precision as you travel across rough, mixed terrains at speed. Coming complete with external cable routing and weighing in at only 234g, the Prime PrimaXC MTB Handlebar is a great choice of upgrade for smooth and dependable steering without any unnecessary excess weight.- T800 unidirectional carbon with 3K weave on bar ends to give added strength to end of bars.- Fibre-painted grip and stem clamping area for improved grip.- 9 degrees back sweep.- 4.8mm rise to give perfect flat top section on bar.- 0 degrees upsweep.Features: Material: T800 Unidirectional Carbon with 3K weave on bar ends Use: Mountain Bike (MTB), Cross Country (XC) Clamping Bore: 31.8mm Width: 780mm (with cut down scale on bars) Cable Routing: External cable routing Backsweep: 9 degrees Upsweep: 0 degrees Rise: 4.8mm Fibre painted grip and stem clamping area Weight: 234gManufacturer's Part Number: PPXCMTBHB780CM Black 78cmx10mm 780mmBuy Prime Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Womens Endurance Saddle - Black - White - 141mm Wide, Black - White
  • £9.99
  • RRP £19.99
  • Saving you £50

Prime Womens Endurance SaddlePrime's Women's Endurance Saddle offers enduring comfort when you're taking on epic distances. It features lightweight titanium rails and a wide and shallow convex shape. Plus, there's a central channel and a cut-out section to relieve pressure on sensitive areas.Endurance-specificDesigned for riding long distances over many hours on the bike. The Women's Endurance saddle has a profile that is optimised for use along with the higher front ends on sportive, touring and gravel/adventure bikes. These types of bikes offer a more relaxed riding position, in which the lower back follows a less aggressive curve to the handlebars, helping you to remain relaxed throughout your ride.Features:Cover: Waterproof microfibre coverBase: Nylon fibre base with cut-out for pressure relief Rail Material: CrMo Padding: High-density EVA foam padding Shallow convex profile with pressure relief channel Cut-out zone Rail fore/aft measurement markers Dimensions: 266x141mm Weight: 327gBuy Prime Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime SR Hub Bushing - Black - 12mm}, Black
  • £4.99

Prime SR Free Hub SpacerThis SR Free Hub Spacer is a spacer that is compatible with all Prime SR rear hubs.Features: Compatible with all Prime SR rear hubs Genuine Prime SR Free Hub SpacerBuy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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