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Shimano Dura Ace R9100 Semi-Compact Chainset Chainsets
  • £399.00
  • RRP £524.99
  • Saving you £24

Although the crank arms and spider arms are noticeably bigger, which increases stiffness, the overall weight of the Shimano Dura Ace R9100 chainset has dropped by 7g over the previous edition of Dura-Ace. Shimano has adapted the crankset to work with disc brake road bikes that generally have 135mm rear hub spacing and shorter chainstays without the need to increase Q-factor thanks to its wider chainring spacing. The double version offered here comes in numerous gear combinations to best suit each individual rider's needs. Please note: Bottom bracket is not included.

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Shimano Dura Ace R9100-Power Meter chainset Power Meter Chainsets
  • £1199.99

Accurate Readings in all Conditions Shimano have extensively tested this new power meter system to ensure its accuracy and reliability in all weather conditions. The chainset is equipped with dual sided and internally hard-wired crank arm strain gauges, which provide a ±2% power measurement accuracy regardless of your pedalling position. Easy to Maintain The power meter is powered with a simple rechargeable battery for easy maintenance and can be updated wirelessly. As it is mounted to the crank arms 4-arm spider, you can change the chainrings without having to worry about affecting the power measurement. Lighter and stiffer Although the crank arms and spider arms are noticeably bigger to increase stiffness, the overall weight has dropped by 7g over the previous edition of Dura-Ace. The chainset has been adapted to work with disc brake road bikes that generally have 135mm rear hub spacing and shorter chainstays without the need to increase Q-factor thanks to its wider chainring spacing. This Compact version features a 50/34T chainring profile to offer an excellent rider tuned gear combination for varied conditions from flats to high mountains.

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Shimano Dura Ace R9100-R9150 Jockey Wheels - Black, Black
  • £39.99

Shimano Dura Ace R9100-R9150 Jockey WheelsIf the shifting ability of your Shimano Dura Ace R9100 or R9150 rear derailleur has become unreliable, these jockey wheels will bring back the crisp and quick gear changes you’re used to. Equipped with precision bearings that are fully sealed, they run smoothly with minimal friction so more of your pedalling power is transferred into driving you forward.Features: Speed: 11-Speed Compatibility: Shimano Dura-Ace R9100 and R9150 rear derailleurs Bearings: Sealed precision bearings Pack of 2 Part Number: Y5ZR98010A 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 R9120 Hydro Brake Levers Gear Levers
  • £293.99
  • RRP £299.99
  • Saving you £2

The 9120 shifters feature a re-designed brake hood that is more comfortable to grip, especially for those with smaller hands. The shifters also offer up to 14mm of reach adjustment. The shifter hood has been slimmed down considerably from previous hydraulic STI shifters and is close in size and shape to the mechanical brake lever. The 9170 brake calipers have been tuned to perform optimally in road racing conditions. They feature the Shimano Flat Mount system for a sleek and aerodynamic profile and Ice Tech pads for improved heat dissipation.

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Shimano Dura Ace R9150 Di2 STI 11 Speed Lever Set Gear Levers
  • £379.99
  • RRP £599.99
  • Saving you £37

E-Tube compatibility means that the function of the shift paddles can be customised to suit the rider. The shift paddles now feature a more defined "click" and have been extended in length for more confident and comfortable shifting. The 9150 shifters now include Synchro-shif technology that automatically moves the rear derailleur when the front ring is changed or moves the front chainring with the rear shifts to optimise chainline and drivetrain efficiency.

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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 R9170 C40 Clincher Disc Wheelset Wheel Sets
  • £1720.99
  • RRP £1904.99
  • Saving you £10

Supreme Aerodynamic Performance Advantage The 40mm rim depth and profile provide a supreme aerodynamic advantage in terms of speed and stability while being exceptionally stiff. The wide rim internals provides an optimised tyre profile when using wider tyres, specifically 28mm tyres. This increased rim width provides the perfect tyre profile/shape to create greater contact patch with the ground, increasing speed, grip and adding an aerodynamic benefit. Stiffness, Stability and Highest Levels of Performance Equipped with straight-pull, stainless steel bladed spokes, laced with Shimano cold-forged aluminium hum front and rear. This wheel is designed to roll on 12mm thru-axles to increase stiffness, stability and safety to even higher levels of performance; this wheelset is perfect for Racing, Endurance days in the saddle, training or exploring new routes in the hills.  

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Shimano Dura Ace R9170 Disc Brake Caliper - Flat Mount Disc Brake Callipers
  • £125.00
  • RRP £129.99
  • Saving you £4

The R9170 calipers feature the Shimano Flat Mount system for a sleek and aerodynamic profile and Ice Tech pads for improved heat dissipation. They are easy to set up and maintain thanks to their easy bleed system that uses one-way bleeding.

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Shimano Dura Ace R9170 Hydraulic Disc Caliper - Flat Mount - Rear
  • £87.99
  • RRP £129.99
  • Saving you £32

Top of the range, high performance Dura-Ace low profile hydraulic road disc brake for efficient braking in all conditions. Key Features: Front wheel use for flat mount forks with adapter to flip between 140 and 160 mm Oversized 22mm ceramic pistons optimized for heat insulation, lightweight and stiffness Opposed 2-piston design reduces leading effect and optimal pad wear increases braking control Increased pad to rotor clearance reduces the chance of rotor drag Direct flat mount and open design allows easy and quick wheel replacement Forged calliper design is lightweight and rigid One way internal fluid circuit makes bleeding easy Mineral oil brake fluid is non-corrosive and less hazardous than conventional hydraulic brake fluid Shim-less mounting bracket allows for quick installation and setting up Recommended for use with Ice Tech FREEZA Centre-Lock SM-RT900 rotors for optimum braking performance Comes complete with resin compound aluminium radiation fin pad further improves heat dissipation reducing brake surface temperature by 50 deg C Inline hose routing for low profile design

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Shimano Dura Ace R9180 Di2 TT Shifter - Black - Right}, Black
  • £274.99

Shimano Dura Ace R9180 Di2 TT ShifterThis high-quality shifter is perfectly tailored for TT and triathlon use as it offers smooth and reliable shifting performance on every run. It features a durable alloy body construction which allows it to withstand all the rowdiness that comes with adrenaline-fuelled competitions. Shimano has gone a step further with this model by equipping it with a carbon fibre reinforced polymer lever for tremendous actuation strength without any excess grams weighing down your handlebars. Adjustable Di2 Road ShifterEngineered for precision, this fantastic component is kitted out with a tooled reach adjust mechanism. This allows you to effortless tweak the distance between your handlebars and the lever to suit your hand-size, riding style or the terrain conditions. As a result, you'll benefit from a superior grip as you pull the lever as well as more accurate shifting performance due to it feeling like a natural extension of your limb. Features: Body Material: Alloy Lever Material: Carbon Fibre reinforced Polymer Use: Road, TT, Triathlon Speed: 11 speed Type: Hydraulic disc Di2 Compatible: Yes Adjustment: Tooled reach adjust Recommended Brake Caliper: BR-R9170 Oil: Shimano mineral oil Hose Joint: Straight Clamp Band Inner Diameter: 19-22.5mm Weight: 99g (approx)Technologies: SEIS: A technological innovation of the computerized shifting system based on the DI2 concept with which is called, the SEIS (SHIMANO ELECTRONIC INTELLIGENT SYSTEM). The SEIS innovative shift technology is still based on the SHIMANO INDEX SYSTEM (SIS) that has proved its superior gear changing characteristics over the years. The big difference is that in this case, the shifting action is provided for by electronics instead of mechanics. This electronic shifting system has been extensively tested over past two years by several professional riders in all conditions possible, such as rain, mud, low temperatures, cobble stone roads and combinations of all of these at the same time. Shifting is executed by simply pressing the button. No power is needed to shift, which gives important advantages since it is easier now to always keep a tight grip on the handlebar and to keep your concentration on riding instead on shifting. The shift system allows accurate and effortless shifting in difficult circumstances for example when you have cold hands or when you are completely exhausted. Furthermore, the shifting performance will never be affected by contaminated or stretched cables since the shifting signal is transferred electronically. The operating buttons work similarly to mechanical DUAL CONTROL LEVER so you don't need to re-program your mind for the SEIS. Reach Adjust: Brake lever is equipped with a reach adjust mechanism. The distance from handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences. E-Tube: The E-TUBE platform's “Plug & play” and D-FLY wireless connections make it easier than ever to check the system's status, and apply customized settings to DI2 and SHIMANO STEPS components with a PC, tablet or smart phone. Wirelessly customize functions like SHIMANO SYNCHRONIZED SHIFT over Bluetooth while out on a ride. Automatically checks for firmware updates on each startup to ensure all components are running the latest version. PC, smartphone and tablet applications can help you quickly diagnose errors and simplify the repair process. Beautiful visualisation of your real-time SHIMANO STEPS riding data on your smartphone. Advanced all-weather design resists rusting, stretching, and freezing.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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Shimano Dura Ace R9180 Di2 TT Shifter Gear Levers
  • £274.99

All set for racing, this brilliant component features a durable alloy body construction which allows it to withstand all the rowdiness that comes with adrenaline-fuelled competitions. Shimano has gone a step further with this model by equipping it with a carbon fibre reinforced polymer lever for phenomenal actuation strength without any excess weight weighing down your handlebars. Adjustable Di2 Road Shifter Engineered for accuracy, this stunning version is kitted out with a tooled reach adjust mechanism. This allows you to easily tweak the distance between your handlebars and the lever to suit your riding style, hand-size or the terrain conditions. As a result, you'll benefit from a more skilful grip as you pull the lever as well as more precise shifting performance due to it feeling like a natural extension of your limb. Technologies: SEIS: A technological innovation of the computerized shifting system based on the DI2 concept with which is called, the SEIS (SHIMANO ELECTRONIC INTELLIGENT SYSTEM). The SEIS innovative shift technology is still based on the SHIMANO INDEX SYSTEM (SIS) that has proved its superior gear changing characteristics over the years. The big difference is that in this case, the shifting action is provided for by electronics instead of mechanics. This electronic shifting system has been extensively tested over past two years by several professional riders in all conditions possible, such as rain, mud, low temperatures, cobble stone roads and combinations of all of these at the same time. Shifting is executed by simply pressing the button. No power is needed to shift, which gives important advantages since it is easier now to always keep a tight grip on the handlebar and to keep your concentration on riding instead on shifting. The shift system allows accurate and effortless shifting in difficult circumstances for example when you have cold hands or when you are completely exhausted. Furthermore, the shifting performance will never be affected by contaminated or stretched cables since the shifting signal is transferred electronically. The operating buttons work similarly to mechanical DUAL CONTROL LEVER so you don’t need to re-program your mind for the SEIS. Reach Adjust: Brake lever is equipped with a reach adjust mechanism. The distance from handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences. E-Tube: The E-TUBE platform's “Plug & play” and D-FLY wireless connections make it easier than ever to check the system's status, and apply customized settings to DI2 and SHIMANO STEPS components with a PC, tablet or smart phone. Wirelessly customize functions like SHIMANO SYNCHRONIZED SHIFT over Bluetooth® while out on a ride. Automatically checks for firmware updates on each startup to ensure all components are running the latest version. PC, smartphone and tablet applications can help you quickly diagnose errors and simplify the repair process. Beautiful visualisation of your real-time SHIMANO STEPS riding data on your smartphone. Advanced all-weather design resists rusting, stretching, and freezing.

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Shimano Dura Ace R9200 12 Speed Cassette
  • £324.99
  • RRP £329.99
  • Saving you £2

Super lightweight 12speed HG+ cassette with a rigid carbon and alloy carrier for excellent shifting even under the most demanding gear changesHyperglide+ sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load,Close ratio gearing allows a more efficient use of energy through finer cadence control,Largest sprockets are mounted on lightweight alloy and carbon carriers to reduce weight and increase rigidity,5 largest sprockets are made from titanium to reduce weight without sacrificing strength,Sprockets are extensively cut away and drilled to further reduce weight without reducing rigidity,Nickel-plated finish offers hard wearing resistance to corrosion,Alloy cassette lockring,For Super Narrow 12-speed chains.

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