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Shimano ST-7970 Dura-Ace Di2 10 Speed Double STI Levers
  • £329.99
  • RRP £549.99
  • Saving you £40

The most advanced level of shifting technology: at the touch of a switch Dura-Ace Di2 is quick shifting, smooth, and effortless, making for unmatched drivetrain efficiency.Key Features:The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates, corrosion and stretching, and also gives effortless gear shifts,Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold,Buttons are located in a near identical place to the positions you|d assume for shifting using a mechanical Shimano STI,Shifters are lightweight thanks to carbon fibre lever blades, carbon composite bracket body, and a titanium clamp band / fixing bolt,Brake lever pivot is positioned to increase power giving excellent ergonomics when riding on the hoods,Finely tuneable reach adjusters for the levers enable custom fitment for all hands,The Di2 STIs are also compatible with the FlightDeck computer (SC-7900), measuring important data such as heart rate, altitude, cadence, gear position, battery indicator, and more,Levers are supplied without electrical cables, as these need to be ordered separately to suit,Weight is 255 grams a pair.

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Shimano Dura-Ace R9200 12 Speed Cassette - Silver - 11-28t}, Silver
  • £329.99

Shimano Dura-Ace R9200 12 Speed CassetteThe Dura-Ace R9200 12 Speed Cassette from Shimano provides fast, smooth and seamless gear shifting performance anywhere. The Dura-Ace 12-Speed gear system is a top-level gearset, and this cassette offers a wide gear range that's reliable, efficient and lightweight.The uninterrupted shifting experience of the Dura-Ace R9200 12-speed cassette range lets you climb, sprint, and push your limits without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed freehub bodies. Shimano HYPERGLIDE+ Gear Shifting PrecisionHYPERGLIDE+ cassettes have revolutionized off-road shifting with their seamless shifts both up and down the gear range. Now it's time for technology to change road cycling. Even during maximal efforts up a climb or nearing the finish line, riders no longer need to back off to perform a shift. In any gear, Dura-Ace R9250 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing 11-speed freehub bodies. All this while increasing to 12-gears and without increasing weight, Dura-Ace CS-R9200 cassettes are the new paradigm in road shifting. Features: Series: Dura-Ace R9200 Series Faster, seamless shifts under maximum pedalling load Refined 12 step gear combination provides peak efficiency and accelerating performance for every situation Add wider 34T spec for pro-race usage Compatible with new 12-Speed and road 11-Speed Freehub body Gear Combination: 11-12-13-14-15-16-17-19-21-24-27-30T / 11-12-13-14-15-17-19-21-24-27-30-34T Type: HYPERGLIDE+ Compatible Chain: Shimano HG 12-Speed Weight: 223g (11-30T); 253g (11-34T)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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Endura QDC D2Z Short Sleeve Womens Cycling Tri Suit II with SST - QDC Tri Pad
  • £332.00
  • RRP £379.99
  • Saving you £13

Pro Level Aero Race SuitKey Features:Multi fabric construction with Surface Silicone Topography (SST™) sleeves for aero optimisation,High wicking main body fabric with coldblack® technology, UPF 50+ protection and mesh side panels manage body temperature,Wind tunnel tested technology minimizes drag,Quick dry, water repellent, Continuously Variable Profile (CVP), high stretch QDC Tri Series pad with exclusive water expelling DisperseFoam™,Selectively bonded seam construction eliminates chafing,Bonded, flush integrated rear pocket and gel wrapper pocket on back thigh,3D printed silicone grippers,.

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CeramicSpeed OSPW Dura-Ace R9100 Rear Derailleur Spares
  • £339.00
  • RRP £379.99
  • Saving you £11

Everything from bearings to the cage on the CeramicSpeed OSPW is made from the highest quality materials. The oversized aluminium pulley wheels are fitted with standard CeramicSpeed Bearings, which reduce friction for optimised power transfer. The overall power savings of the OSPW System for Shimano reach 30%-60% or more in some cases. The CeramicSpeed oversized pulley wheel system has a lifetime that lasts 3-5 times longer than the commonly used standard pulleys on the market. This Shimano Dura-Ace 9100/9150 rear derailleur compatible version features an optimal 13/19-tooth combination specially developed to fit the design of this road bike rear derailleur. This system has been proven to be the fastest pulley system in the world, providing energy savings starting from 2.4 watts over standard Shimano systems. The OSPW system is an industry-leading product, chosen by many of the world's leading cycling teams and professional triathletes. IMPORTANT: When travelling, please remember to dismount your entire rear derailleur with an Allen key, as the OSPW System will not fit in most bike travel bags and could be damaged if left on. The revolutionary OSPW System is developed, produced and assembled by hand in Denmark. The product is the result of an in-depth development process and has been designed for optimal performance. Like all other products delivered by CeramicSpeed, OSPW System has also undergone a thorough test program. We are proud to say that professional triathletes such as Tim Don and Tyler Butterfield have great feedback for the system and, along with Pro Continental teams, they have made it a permanent part of their equipment. Regarding the maintenance of your OSPW System, it is important that you properly lubricate your bearings in order to ensure optimal performance and maximum longevity. Add oil by using the lubrication points on the back cage plate, so that oil can penetrate the bearing. Do this when you lubricate your chain, if you have washed your bike or after riding in wet or muddy conditions.

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Shimano Dura-Ace R9250 Di2 12 Speed Shifter Brake Levers
  • £349.99

The finest rim brake Dual Control Levers on the market, Dura-Ace ST-R9250 offer 12-speed shifting with refined ergonomics and is exceptionally lightweight. Dura-Ace ST-R9250 Dual Control Levers are the ultimate in reliable performance thanks to a Di2 electronic wired gear connection and lightweight rim brakes. Refined ergonomics and advanced materials show the racing pedigree of these levers. Shimano E-Tube E-Tube is Shimano's “service” that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting the riders, the bicycles and Shimano. Shimano's genuine application E-Tube Project for Mobile allows you to customize your bike, update firmware, and maintain it by connecting it wirelessly to your bike. You can also get more detailed bike maintenance by connecting to your bike by wire with E-Tube Project via the Windows V4 application. Shimano DCL Dual Control Lever DCL stands for Dual Control Lever. It has brake and shifting functions in the system and enables easy operation. Ergonomic innovation is as critical to higher standard performance as the added gearing. The shift internals borrows the robustness from Shimano's MTB technology and is so smooth and effortless that one finger shifts front and rear are possible. Indeed, shifting is the ultimate act of Shimano Total Integration and simply has to be experienced to be understood.

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Shimano ST-R9160 Dura-Ace Di2 STI 2x11 Speed Gear Levers
  • £349.99

The electronic shifters enable changing between gears at the click of a button when in the aero position. Having the integrated brake levers in the same position at the front of the TT bars provides the rider with total racing confidence and supreme performance Pure Performance The levers are made from carbon and aluminium so they are much lighter than traditional STI levers and have been designed to enhance performance. The weight is reduced and performance increased even further due to there being no mechanical cables to control the gearing. As these levers use Di2 technology, they function by using lightweight electrical cables to effortlessly command your derailleurs to shift up and down gears. Enhanced Rider Customisation The positioning of the shift buttons and the ergonomics of the brake lever blades allows you to both brake and shift at the same time. This means you can brake late into tight corners, change gear instantly and accelerate back to your regular speed without needing to change your aerodynamic saddle positioning. The brake levers also have tuneable reach adjusters to enhance rider customisation, so you can truly feel at one with your bike.

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Shimano ST-R9160 Dura-Ace Di2 2x11 Speed Lever - Black - Pair}, Black
  • £349.99

Shimano ST-R9160 Dura-Ace Di2 2x11 Speed LeverThe Shimano Dura-Ace ST-R9160 2x11-Speed Di2 levers add an additional level of functionality to your time trial or triathlon bike's electronic drivetrain. The electronic shifters enable changing between gears at the click of a button when in the aero position. Having the integrated brake levers in the same position at the front of the TT bars provides the rider with total racing confidence and supreme performance.Pure PerformanceThe levers are made from carbon and aluminium so they are much lighter than traditional STI levers and have been designed to enhance performance. The weight is reduced and performance increased even further due to there being no mechanical cables to control the gearing. As these levers use Di2 technology, they function by using lightweight electrical cables to effortlessly command your derailleurs to shift up and down gears.Enhanced Rider CustomisationThe positioning of the shift buttons and the ergonomics of the brake lever blades allows you to both brake and shift at the same time. This means you can brake late into tight corners, change gear instantly and accelerate back to your regular speed without needing to change your aerodynamic saddle positioning. The brake levers also have tuneable reach adjusters to enhance rider customisation, so you can truly feel at one with your bike.Features: Material: Carbon (lever blades), Carbon Composite (body), Alloy (wedge clamp) Easy touch buttons allow effortless and comfortable shifting even when hands are cold Brake lever pivot is designed to be used with super SLR brake callipers Finely tune reach adjusters for the levers enable custom fitment for all hands For use with E-tube electric cables Comes complete with SLR brake cable set Compatibility: Shimano Di2 E-Tube gear systems Weight: 124gA 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 Dura-Ace R9250 Di2 12 Speed Shifter - Black - Right Rear}, Black
  • £349.99

Shimano Dura-Ace R9250 Di2 12 Speed ShifterThe Dura-Ace R9250 Di2 12 Speed Shifter from Shimano is the ideal brake/shift lever for use with Shimano caliper rim brakes and Shimano 12-Speed Di2 electronic gear systems. Plus, this Dual Control lever is designed and engineered to be comfortable, efficient and reliable. And it also ensures smooth gear shifting performance and a confidence-inspiring and powerful braking feel. The finest rim brake Dual Control Levers on the market, Dura-Ace ST-R9250 offer 12-speed shifting with refined ergonomics and is exceptionally lightweight. Dura-Ace ST-R9250 Dual Control Levers are the ultimate in reliable performance thanks to a Di2 electronic wired gear connection and lightweight rim brakes. Refined ergonomics and advanced materials show the racing pedigree of these levers. Shimano E-TubeE-Tube is Shimano's “service” that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting the riders, the bicycles and Shimano. Shimano's genuine application E-Tube Project for Mobile allows you to customize your bike, update firmware, and maintain it by connecting it wirelessly to your bike. You can also get more detailed bike maintenance by connecting to your bike by wire with E-Tube Project via the Windows V4 application. Shimano DCL Dual Control LeverDCL stands for Dual Control Lever. It has brake and shifting functions in the system and enables easy operation. Ergonomic innovation is as critical to higher standard performance as the added gearing. The shift internals borrows the robustness from Shimano's MTB technology and is so smooth and effortless that one finger shifts front and rear are possible. Indeed, shifting is the ultimate act of Shimano Total Integration and simply has to be experienced to be understood. Features: Quick and intuitive shifting Series: Dura-Ace R9200 Series Drivetrain: Shimano Di2 Electronic Speeds: 12-Speed Clearly defined click feeling with the ergonomic shift lever Better bike control and confidence in race conditions Hood shape and texture optimize grip and brake power transmission CFRP* lever CFRP* bracket *CFRP: Carbon fibre reinforced plasticsA 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 Dura-Ace R9250 Di2 12 Speed Shifter - Black - Front Left}, Black
  • £349.99

Shimano Dura-Ace R9250 Di2 12 Speed ShifterThe Dura-Ace R9250 Di2 12 Speed Shifter from Shimano is the ideal brake/shift lever for use with Shimano caliper rim brakes and Shimano 12-Speed Di2 electronic gear systems. Plus, this Dual Control lever is designed and engineered to be comfortable, efficient and reliable. And it also ensures smooth gear shifting performance and a confidence-inspiring and powerful braking feel. The finest rim brake Dual Control Levers on the market, Dura-Ace ST-R9250 offer 12-speed shifting with refined ergonomics and is exceptionally lightweight. Dura-Ace ST-R9250 Dual Control Levers are the ultimate in reliable performance thanks to a Di2 electronic wired gear connection and lightweight rim brakes. Refined ergonomics and advanced materials show the racing pedigree of these levers. Shimano E-TubeE-Tube is Shimano's “service” that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting the riders, the bicycles and Shimano. Shimano's genuine application E-Tube Project for Mobile allows you to customize your bike, update firmware, and maintain it by connecting it wirelessly to your bike. You can also get more detailed bike maintenance by connecting to your bike by wire with E-Tube Project via the Windows V4 application. Shimano DCL Dual Control LeverDCL stands for Dual Control Lever. It has brake and shifting functions in the system and enables easy operation. Ergonomic innovation is as critical to higher standard performance as the added gearing. The shift internals borrows the robustness from Shimano's MTB technology and is so smooth and effortless that one finger shifts front and rear are possible. Indeed, shifting is the ultimate act of Shimano Total Integration and simply has to be experienced to be understood. Features: Quick and intuitive shifting Series: Dura-Ace R9200 Series Drivetrain: Shimano Di2 Electronic Speeds: 12-Speed Clearly defined click feeling with the ergonomic shift lever Better bike control and confidence in race conditions Hood shape and texture optimize grip and brake power transmission CFRP* lever CFRP* bracket *CFRP: Carbon fibre reinforced plasticsA 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 Dura Ace R9170 C40 Carbon Tubeless Front Wheel - 12 x 100mm Thru Axle - Centre Lock Disc
  • £351.99
  • RRP £900.00
  • Saving you £61

WH-R9170 TL carbon clincher disc brake wheel, designed to meet pro road race criteria. Key Features: Lightweight clincher full carbon 40 mm deep 24 mm wide rim for improved aerodynamics, increased rigidity and excellent inertia Easy to use Centre-Lock rotor mount for use with disc brakes 24 stainless steel butted (2.0-1.8-2.0) and bladed straight pull spokes Elbow-less spokes make for a strong yet compliant wheel High lateral rigidity is produced with a wide flange spacing Labyrinth double-contact sealing effectively shuts out water and dirt Alloy cone with integrated steel Borozon treated bearing races - super mirror finish reduces friction Quick and easy to maintain bearing adjustment Cold forged, machined aluminium hub shell and oversized 7075 alloy axle keep the wheel weight to a minimum 700C clincher (tubeless compatible), 23 - 32C For 100 x 12 mm axle Average weight 707 grams

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Shimano Dura-Ace Di2 R9170 Hydraulic Disc Brake STI Lever with Flat Mount Caliper - Right/Front
  • £357.99
  • RRP £514.99
  • Saving you £30

Top of the range, high performance Dura-Ace hydraulic disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditions With Di2 technology shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates, corrosion and stretching, and also provides effortless gear shifts Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold Shifters are lightweight thanks to carbon fibre lever blades, carbon composite bracket body, and a titanium clamp band / fixing bolt Drop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STI Hydraulic brake lever provides excellent stopping power with less effort especially from the hood position Hydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wear Finely tuneable reach adjusters for the levers enable custom fitment for all hands Free stroke adjustment for pad to rotor contact setting Levers are supplied without electrical cables, as these need to be ordered separately to suit Two ports for use with E-tube electric cables Kit contains right hand bled ST-R9170 STI, BR-R9170 flat mount brake calliper with pads, hoses and mineral oil (without rotors or adapters) Weight is 360 grams a pair

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4iiii Dura Ace 9100 Left-Hand Crank with Precision 2.0 Power Meter
  • £358.99
  • RRP £429.00
  • Saving you £16

Whether you’re a pro or simply training hard, PRECISION powermeters deliver industry-leading accuracy, highly dependable cadence data, 3D powermeter technology capable of measuring tri-axial strain on your crank arm. Designed to be durable and lightweight, compatible with  ANT+ and Bluetooth head units, PRECISION helps you train harder and smarter.PRECISION Ride Ready comes installed on a new Shimano left crank arm (105, Ultegra, or Dura-Ace). These crank arms will fit bottom brackets using the Hollowtech ii interface.Key Features:3D powermeter technology (patent pending) measures tri-axial strain on your crank arm,Accurate, consistent data,Lightweight, compact design,Battery status indicator via 4iiii app,Compatible with ANT+, Bluetooth Smart head units, smartphones, and other 4iiii products,User-friendly app and configurable rider compensation scale factor,Easy setup and maintenance,.Specifications:Weight: 9 grams,Data accuracy: +/- 1% error margin,Battery life: 100+ riding hours on 2032 coin cell battery.

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