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 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 Noosa Clip On Aero Bar Riser Kit - Black, Black
  • £14.99

Prime Noosa Clip On Aero Bar Riser KitThis 30mm spacer kit is specifically designed for use with the Prime Noosa Carbon Clip-on Aerobar. It allows for riders to optimise the stack height and benefit from the most aerodynamic position and the best ergonomics.Features: Use: Road, TT Compatibility: Prime Noosa Carbon Clip-on Aerobar Size: 30mm spacer kit Manufacturer's Part Number: PNCORKBBuy Prime Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime CR-MO Sport Road Bike Saddle - Black - White - 132mm Wide, Black - White
  • £14.99
  • RRP £18.49
  • Saving you £19

Prime CR-MO Sport Road Bike SaddleThe Prime CR-MO Sport Saddle is shaped for comfort in a relaxed, slightly more upright cycling posture. In this position, as the angle between the spine and the legs is reduced, the pelvis may tilt forward slightly into its natural comfortable position. Also, as the pelvis tilts forward, a central channel and cut-out zone in the base alleviates pressure in the soft tissue in front of the sit bones.The shallow convex profile and raised rear edge combined with an increased surface area provide a stable platform to support the sit bones. The curved wings allow clearance for the inner thigh as you pedal, and beneath the waterproof microfibre cover, a layer of high-density PU foam padding provides additional cushioning and pressure relief.The CR-MO rails also feature measurement markers. These help you adjust the fore/aft position of your saddle accurately to achieve an efficient and ergonomic pedalling motion.Features:Shallow convex profile with pressure relief channelNylon fibre base with cut-out zone for pressure reliefWaterproof microfibre coverDurable CR-MO Rails with measurement markersHigh-density PU foam paddingWeight: 252gBuy Prime Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime TI Road Saddle - Black - White - 134mm Wide, Black - White
  • £14.99
  • RRP £24.99
  • Saving you £40

Prime TI Road SaddleThe Prime TI Road Saddle can be used across a range of cycling disciplines and with its minimalist, lightweight construction, it's ideal for high mileage use. It features a shallow convex shape, which supports the sit bones when riding in an aero position. Plus, thanks to a cut-out zone in the base, the pressure is relieved from the perineum when riding upright.Highly VersatileTruly a great all-rounder, the TI Road saddle suits most rider types. For cyclists with a flexible lower back, it supports sit bones when the pelvis is upright and those with a less flexible back, the pelvis may tilt forward. The slight curve and cut-out on the base ensures the inner thigh area has plenty of clearance for comfortable and efficient pedalling.Efficient and DurableFeaturing titanium alloy rails with a chromium nitride (CrN) coating, you've got excellent tensile strength, rigidity and corrosion resistance, plus a very low weight. These high-quality rails also increase the durability of the saddle, as they are far less able to flex and creak as you're riding. The rail's strength and lack of bulk help you to save energy when conquering a long climb or putting in a big effort when accelerating up to top speed.Features:Cover: Waterproof microfibre coverBase: Nylon fibre base with cut-out for pressure relief Rail Material: Titanium alloy with CrN (Chromium Nitride) coating Rail fore/aft measurement markersShallow convex profile Dimensions: 275x134mm Weight: 224gBuy Prime Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Direct Stem Bike Computer Mount - Black, Black
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Direct Stem Bike Computer MountAn ultra-rugged computer mount that is engineered for a clean, fully integrated mounting solution that allows you to mount your computer without the use of a clamp. The mount puts the your computer in plain slight - out in front of your bars without interfering with valuable bar space.CompatibilityGarmin: Edge 200, Edge 500, Edge 510, Edge 520, Edge 800, Edge 810, Edge 820, Edge 1000, Edge 1030, Touring Plus.Wahoo: Elemnt, Elemnt Roam, Elemnt Bolt, Elemnt Mini.FeaturesFully machined aluminium CNC aluminium body constructionGarmin and Wahoo compatibleAdjustable bolt spacing to fit a wide variety of stemsAngled spacers to suit Prime Primavera Carbon StemM5 x 40mm boltBuy Prime GPS Spares from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Direct Stem Bike Computer Mount - Red, Red
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Direct Stem Bike Computer MountAn ultra-rugged computer mount that is engineered for a clean, fully integrated mounting solution that allows you to mount your computer without the use of a clamp. The mount puts the your computer in plain slight - out in front of your bars without interfering with valuable bar space.CompatibilityGarmin: Edge 200, Edge 500, Edge 510, Edge 520, Edge 800, Edge 810, Edge 820, Edge 1000, Edge 1030, Touring Plus.Wahoo: Elemnt, Elemnt Roam, Elemnt Bolt, Elemnt Mini.FeaturesFully machined aluminium CNC aluminium body constructionGarmin and Wahoo compatibleAdjustable bolt spacing to fit a wide variety of stemsAngled spacers to suit Prime Primavera Carbon StemM5 x 40mm boltBuy Prime GPS Spares from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Direct Stem Bike Computer Mount - Gold, Gold
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Direct Stem Bike Computer MountAn ultra-rugged computer mount that is engineered for a clean, fully integrated mounting solution that allows you to mount your computer without the use of a clamp. The mount puts the your computer in plain slight - out in front of your bars without interfering with valuable bar space.CompatibilityGarmin: Edge 200, Edge 500, Edge 510, Edge 520, Edge 800, Edge 810, Edge 820, Edge 1000, Edge 1030, Touring Plus.Wahoo: Elemnt, Elemnt Roam, Elemnt Bolt, Elemnt Mini.FeaturesFully machined aluminium CNC aluminium body constructionGarmin and Wahoo compatibleAdjustable bolt spacing to fit a wide variety of stemsAngled spacers to suit Prime Primavera Carbon StemM5 x 40mm boltBuy Prime GPS Spares from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Race Bike Computer Mount - Red - Large}, Red
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Race Computer MountThe Race Computer Mount from Prime enables you to mount your cycle computer independently on your handlebars for easy visibility and use. Plus, it's machined from CNC aluminium for the ideal balance of strength at a low weight. And, it's compatible with Garmin and Wahoo cycle computers.Features: Material: Fully Machined CNC Aluminium body, Plastic resin insert Garmin/Wahoo compatible Hinge design for easy mounting Weight: 37g (small); 39g (large)Please Note: "Large" option required for use with larger screen bike computers such as Garmin 1000 models and above.Buy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Race Bike Computer Mount - Gold - Small}, Gold
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Race Computer MountThe Race Computer Mount from Prime enables you to mount your cycle computer independently on your handlebars for easy visibility and use. Plus, it's machined from CNC aluminium for the ideal balance of strength at a low weight. And, it's compatible with Garmin and Wahoo cycle computers.Features: Material: Fully Machined CNC Aluminium body, Plastic resin insert Garmin/Wahoo compatible Hinge design for easy mounting Weight: 37g (small); 39g (large)Please Note: "Large" option required for use with larger screen bike computers such as Garmin 1000 models and above.Buy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Race Bike Computer Mount - Gold - Large}, Gold
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Race Computer MountThe Race Computer Mount from Prime enables you to mount your cycle computer independently on your handlebars for easy visibility and use. Plus, it's machined from CNC aluminium for the ideal balance of strength at a low weight. And, it's compatible with Garmin and Wahoo cycle computers.Features: Material: Fully Machined CNC Aluminium body, Plastic resin insert Garmin/Wahoo compatible Hinge design for easy mounting Weight: 37g (small); 39g (large)Please Note: "Large" option required for use with larger screen bike computers such as Garmin 1000 models and above.Buy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Race Bike Computer Mount - Blue - Large}, Blue
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Race Computer MountThe Race Computer Mount from Prime enables you to mount your cycle computer independently on your handlebars for easy visibility and use. Plus, it's machined from CNC aluminium for the ideal balance of strength at a low weight. And, it's compatible with Garmin and Wahoo cycle computers.Features: Material: Fully Machined CNC Aluminium body, Plastic resin insert Garmin/Wahoo compatible Hinge design for easy mounting Weight: 37g (small); 39g (large)Please Note: "Large" option required for use with larger screen bike computers such as Garmin 1000 models and above.Buy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Race Bike Computer Mount - Blue - Small}, Blue
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Race Computer MountThe Race Computer Mount from Prime enables you to mount your cycle computer independently on your handlebars for easy visibility and use. Plus, it's machined from CNC aluminium for the ideal balance of strength at a low weight. And, it's compatible with Garmin and Wahoo cycle computers.Features: Material: Fully Machined CNC Aluminium body, Plastic resin insert Garmin/Wahoo compatible Hinge design for easy mounting Weight: 37g (small); 39g (large)Please Note: "Large" option required for use with larger screen bike computers such as Garmin 1000 models and above.Buy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Race Bike Computer Mount - Black - Small}, Black
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Race Computer MountThe Race Computer Mount from Prime enables you to mount your cycle computer independently on your handlebars for easy visibility and use. Plus, it's machined from CNC aluminium for the ideal balance of strength at a low weight. And, it's compatible with Garmin and Wahoo cycle computers.Features: Material: Fully Machined CNC Aluminium body, Plastic resin insert Garmin/Wahoo compatible Hinge design for easy mounting Weight: 37g (small); 39g (large)Please Note: "Large" option required for use with larger screen bike computers such as Garmin 1000 models and above.Buy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Race Bike Computer Mount - Red - Small}, Red
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Race Computer MountThe Race Computer Mount from Prime enables you to mount your cycle computer independently on your handlebars for easy visibility and use. Plus, it's machined from CNC aluminium for the ideal balance of strength at a low weight. And, it's compatible with Garmin and Wahoo cycle computers.Features: Material: Fully Machined CNC Aluminium body, Plastic resin insert Garmin/Wahoo compatible Hinge design for easy mounting Weight: 37g (small); 39g (large)Please Note: "Large" option required for use with larger screen bike computers such as Garmin 1000 models and above.Buy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Race Bike Computer Mount - Black - Large}, Black
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Race Computer MountThe Race Computer Mount from Prime enables you to mount your cycle computer independently on your handlebars for easy visibility and use. Plus, it's machined from CNC aluminium for the ideal balance of strength at a low weight. And, it's compatible with Garmin and Wahoo cycle computers.Features: Material: Fully Machined CNC Aluminium body, Plastic resin insert Garmin/Wahoo compatible Hinge design for easy mounting Weight: 37g (small); 39g (large)Please Note: "Large" option required for use with larger screen bike computers such as Garmin 1000 models and above.Buy Prime Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Nutrition Pouch Top Tube Bag - Black, Black
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Nutrition Pouch Top Tube BagThis nutrition pouch from Prime gives you plenty of storage, so you can stay energised as you battle against your competitors on race day. It features a sleek design that allows it to sit snuggly against the stem of your triathlon bike to smooth airflow over the stem. Keeping your gear securely held in place as you move, this pouch uses its two silicone straps to optimise positioning as you blast across unpredictable terrain conditions at speed. One final highlight is its fiberglass, nylon and rubber construction, which gives it superb durability without any unnecessary weight.Features: Material: TPV+ABS Use: Triathlon Length: 220mm Width: 42mm Capacity: 260cm3 Weight: 155gTechnologies: Plenty of storage for energy gels, blocks and bars. Sits snuggly against the stem of your triathlon bike to smooth airflow over the stem. Direct-mount option if your top tube features rivet nuts. Two silicone straps optimize positioning and security. Fiberglass, nylon and rubber construction for low weight and durability.Buy Prime Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Lightweight Road Thru Axle - Black - 173/15/M12*P1.5}, Black
  • £14.99

Prime Lightweight Road Thru AxleIf you’re looking to shave some grams from your disc brake road bike but still retain the same confidence-inspiring hold that a 12mm thru axle provides, this Prime Lightweight axle is the perfect choice. An ideal upgrade from your bike’s bulky factory fitted model, it has a low profile, leverless design to give your modern road bike clean looks and extra security when you leave it unattended. Tough, strong and durable, these road bike thru-axles can easily be tightened up with a 6mm Allen key.Features: Material: AL7075 Low profile and lightweight CNC Precision engineered Hollow for weight saving Torque to 10NmAvailable in a range of sizes, Prime has catered for the most common road bike lengths and thread pitches: Option Type Hub Size Length Thread Length Thread Pitch Weight 1 E-Thru 12x100mm 120mm  15mm M12x1.5 24g 2 E-Thru 12x100mm 124mm  15mm M12x1.5 25g 3 E-Thru 12x142mm 160mm 15mm M12x1.5 28g 4 E-Thru 12x142mm 163mm 15mm M12x1.5 29g 5 E-Thru 12x142mm 166mm 15mm M12x1.5 30g 6 E-Thru 12x142mm 170mm 15mm M12x1.5 30g 7 E-Thru 12x142mm 173mm 15mm M12x1.5 31g Manufacturer Part Numbers: Front:  120/15/M12*P1.5: PLRDTA120B 124/15/M12*P1.5: PLRDTA124B Rear: 160/15/M12*P1.5: PLRDTA160B 163/15/M12*P1.5: PLRDTA163B 166/15/M12*P1.5: PLRDTA166B 171/15/M12*P1.5: PLRDTA171B 173/15/M12*P1.5: PLRDTA173BBuy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Thermal Bidon 500ml - Silver - 500ml}, Silver
  • £14.99
  • RRP £19.99
  • Saving you £25

Prime Thermal Bidon 500mlKeeping your liquid cold for up to 4 hours, this 500ml thermal water bottle maintains a consistently cool temperature thanks to its Nanogel construction. Known as the world's lightest insulating material, it's made of 5% solid material and 95% air. It features a BPA (Bisphenol-A) free certified plastic construction as well as Nanogel, which is superisingly lightweight. This makes it a major benefit for riders who want to shave important grams off their overall bike weight, without worrying about adding unnecessary water bottle weight. Due to its versatile construction, this model allows for high thermal capacity, extra lightness and fantastic flexibility in a single product.Whether you're taking part in an event or riding with your local club, this water bottle will keep your liquid cold for up to four hours. Another key benefit is its rubber push/pull valve boasts an odourless and tasteless material. This means that the taste of your liquid will be unaltered, while its easy to squeeze design makes drinking simple, as you clock up the miles on your bike.Features: Material: Nanogel, BPA (Bisphenol-A) free certified Plastic materials Size: 500ml Thermal Effect: 4 hours Valve: Push-pull Diameter: 74mm Safe and odourless Innovative design Weight: 109gBuy Prime Bike Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Carbon Pro Road Rim Brake Pads - Black - Set of 4}, Black
  • £12.99

Prime Carbon Pro Road Rim Brake PadsThe Prime Carbon Pro brake pads have been designed specifically for carbon rims to offer the best balance of power and modulation in both dry and wet weather conditions. Our proprietary pad compound has been manufactured in conjunction with industry leading pad manufacturer BrakeCO.We have tested this pad in both simulated and real world conditions to offer the best possible braking performance when used with the brake tracks on carbon road rims.We have added channels to quickly and efficiently displace water from the brake track in wet conditions to enhance wet weather braking performance; these also have an added benefit of allowing air to pass through in dry weather conditions, which helps to keep the pads and rim from overheating under prolonged periods of braking.Features: Proprietary pad compound for carbon fibre rims Pack contains 4 pads without holders Pad channels to enhance wet & dry weather braking performance Compatible with most brands of road bike brake calipers Not suitable for Campagnolo brake calipersBuy Prime Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Tool Roll - Black - One Size}, Black
  • £12.99
  • RRP £29.99
  • Saving you £57

Prime Tool RollThis tool roll is made from a multi-layer reinforced nylon material that's designed for maximum strength, while also being water-resistant. A perfect choice for storing your essential bike tools, this model is easy to use and provides quick and simple tool access when you need it. Coming complete with a high-quality WJ buckle that clips together, its secure and effective design makes finding and transporting your tools as easy as possible.Features: Material: Multi-layer reinforced water-resistant Nylon / Polyester fabric Buckle: High-quality WJ buckle Length: 225mm Width: 330mmBuy Prime Bike Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Prime Lightweight Road Thru Axle - Black - 171/15/M12*P1.5}, Black
  • £12.99
  • RRP £14.99
  • Saving you £13

Prime Lightweight Road Thru AxleIf you’re looking to shave some grams from your disc brake road bike but still retain the same confidence-inspiring hold that a 12mm thru axle provides, this Prime Lightweight axle is the perfect choice. An ideal upgrade from your bike’s bulky factory fitted model, it has a low profile, leverless design to give your modern road bike clean looks and extra security when you leave it unattended. Tough, strong and durable, these road bike thru-axles can easily be tightened up with a 6mm Allen key.Features: Material: AL7075 Low profile and lightweight CNC Precision engineered Hollow for weight saving Torque to 10NmAvailable in a range of sizes, Prime has catered for the most common road bike lengths and thread pitches: Option Type Hub Size Length Thread Length Thread Pitch Weight 1 E-Thru 12x100mm 120mm  15mm M12x1.5 24g 2 E-Thru 12x100mm 124mm  15mm M12x1.5 25g 3 E-Thru 12x142mm 160mm 15mm M12x1.5 28g 4 E-Thru 12x142mm 163mm 15mm M12x1.5 29g 5 E-Thru 12x142mm 166mm 15mm M12x1.5 30g 6 E-Thru 12x142mm 170mm 15mm M12x1.5 30g 7 E-Thru 12x142mm 173mm 15mm M12x1.5 31g Manufacturer Part Numbers: Front:  120/15/M12*P1.5: PLRDTA120B 124/15/M12*P1.5: PLRDTA124B Rear: 160/15/M12*P1.5: PLRDTA160B 163/15/M12*P1.5: PLRDTA163B 166/15/M12*P1.5: PLRDTA166B 171/15/M12*P1.5: PLRDTA171B 173/15/M12*P1.5: PLRDTA173BBuy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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