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Shimano Ultegra R8000 Double 11-Speed STI Shift Levers
  • £296.99
  • RRP £329.99
  • Saving you £10

The new Shimano Ultegra R8000 shift levers offer powerful braking and effortless 11-speed shifting,making them the ideal choice for both enthusiasts and competitive riders.The shifters feature a redesigned internal shifting unit that reduces resistance and makes the transition from one gear to the next a seamless experience, even when put under loads.Weighing 440 grams per pair the shifters feature an adjustable reach and have been ergonomically redesigned for improved ergonomic comfort in your hand, so you can benefit from better all-around usability.2x11 SpeedCarbon leversRedesigned internal shifting unitGreater reach rangeWeight: 220g (Per Shifter)

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Shimano CS-M9100 XTR 12-Speed Cassette - 10-45T
  • £296.99
  • RRP £329.99
  • Saving you £10

With its Beam Spider construction, the CS-M9100 XTR 12-speed cassette shaves weight while increasing Shimano's MTB gearing range another gear. Using Shimano's new Micro Spline freehub body and Hyperglide+ tooth profile, these 10-45 and 10-51T cassettes deliver the best MTB shift experience on offer.Increased acceleration by reducing inertia and weight by Beam Spider constructionAlloy 5 beam spider carrier with 3 alloy, 5 titanium and 4 Chromoly sprockets make this a lightweight, stiff and durable 12-speed Micro Spline MTB cassetteHyperglide+ sprockets have a computer designed tooth configuration with contoured shift gates, resulting in 1/3 faster shift time than current HG cassettes providing seamless, smooth operation even under load10-45T wide ratio gearing allows a more efficient use of energy through finer cadence control in ever changing trail conditionsSprockets are cut away extensively and drilled to further reduce weight without reducing rigiditySprockets use hard anodising and nickel-plated finish for added durability and resistance to corrosionAlloy cassette lock ringFor use with Shimano 12-speed SIL-TEC chainsAverage weight 357g

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Shimano XTR M9100 12 Speed Chainset Chainsets
  • £299.98
  • RRP £479.99
  • Saving you £38

It features the iconic Shimano Hollowtech II construction process making it one of the most advanced cranksets on the market today. Furthermore, it Provides the highest drivetrain efficiency, stiffness and lightest weight and it achieves this exceptional combination in a sleek and stylish 2x direct mount transmission.

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Shimano XTR M9100 12sp MTB Chainset - Grey - 38.28t}, Grey
  • £299.98
  • RRP £479.99
  • Saving you £38

Shimano XTR M9100 12sp MTB ChainsetThis Shimano XTR M9100 12 Speed Chainset is the top-end Shimano 2x12-Speed crankset and enables you to conquer any mountain, no matter how demanding. Featuring the iconic Shimano Hollowtech II construction process, the XTR M9100 is the most advanced chainset on the market today. Providing the highest drivetrain efficiency, stiffness and lightest weight and it achieves this exceptional combination in a sleek and stylish 2x direct mount transmission.Features: Material: Aluminium Use: XC, Marathon, Trail Type: Shimano Hollowtech II Bolt Circle Diameter: Direct Mount (Inner chainring bolted to outer chainring) Drivetrain Compatibility: 12-Speed Recommended Bottom Bracket: Press-Fit: SM-BB94-41A; Threaded: SM-BB93 Q-Factor: 162mm Chain Line: 48.8mm Weight: 511gA 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 M6100 Deore 12Sp MTB Drivetrain Groupset - Black - 10-51t, Black
  • £299.99
  • RRP £319.99
  • Saving you £6

Shimano M6100 Deore 12Sp MTB Drivetrain GroupsetEnjoy smooth and reliable shifting control with this 12 speed MTB Drivetrain Groupset from Shimano. Made for mountain bike (MTB) riders, this set gives riders the ultimate set for tackling whatever challenges you meet on the trail. Equipped with a durable Chainset, Rear Mech, Shifter, Cassette, and Chain, you can enjoy a smooth and dependable drivetrain performance.Groupset Includes:Shimano Deore FCM6100E2 ChainsetShimano Deore RDM6100SGS Rear MechShimano Deore SLM6100R ShifterShimano Deore CSM6100051 CassetteShimano Deore CNM6100126Q ChainFeatures:Use: MTBSpeed: 1x12 speedTooth Profile: Narrow/WideCrank Mount: Direct mountCassette Ratio: 10-51 Teeth (T)Freehub Compatibility: MicrosplineChainring Size: 32TCrank Mount: Direct mountBottom Bracket: Not includedTechnology: Dynamic Chain Engagement technology, Shimano Shadow RD+, Rapidfire Plus, Two Way Release, HyperGlide+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 Ultegra R8100 12 Speed Chainset - Black - 50.34t}, Black
  • £299.99

Shimano Ultegra R8100 12 Speed ChainsetThe Ultegra R8100 12 Speed Chainset from Shimano offers efficient power transfer, smooth gear shifting performance and top-quality race-ready reliability. Ideal for competitive road racing, this chainset offers the optimal balance of stiffness and strength at a low weight. Plus, it features Hollowtech II crank arms, a Hollowglide outer chainring and is compatible with most modern bottom bracket standards from Shimano.Shimano's Ultegra FC-R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, Ultegra cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms. An integral part of Shimano's new 12-Speed road lineup, the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-Speed shifting, the Ultegra crank is now offered in lengths from 160 to 175 mm, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanical requirements. Hollowglide ChainringHollow technology on the outer chainring. The Hollowglide construction ensures high rigidity while its hollow structure cuts down on weight yet maintains strength. This provides better power transfer and quicker and more precise front shifting performance. Hollowtech II Forged Crank ArmsA lightweight crankset not only reduces the bike's weight but decreases rotating mass to aid in acceleration. The challenge is to reduce the weight of the crank without reducing its strength and rigidity. Shimano's advanced forging technology has solved the problem through the HOLLOWTECH crank. Just like high-quality frame tubing, a hollow crank arm can provide amazing strength and rigidity at very lightweight. Optimised Balance of Stiffness, Strength and WeightThe concept of Hollowtech II technology is focused on producing a superior crankset that will maximize a rider's power transfer. The rigidity of the crankset ensures pedalling efficiency while its low weight, a key element of the crankset, aids in cycling longer distances over which the rider needs to pedal more. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedalling stability, allowing for more efficient power transfer. Features: Material: Hollowtech II Aluminium Series: Ultegra R8100 Series Optimal balance of stiffness, strength, weight and rotational performance HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting Recommended Bottom Bracket: Press-Fit: SM-BB72-41B; Threaded: SM-BBR60 Q-Factor: 148mm Chainline: 44.5mm Drivetrain Speeds: 12-Speed Weight: 711g (52-36T); 700g (50-34T)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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Shimano Ultegra R8100 12 Speed Chainset - Black - 52.36t}, Black
  • £299.99

Shimano Ultegra R8100 12 Speed ChainsetThe Ultegra R8100 12 Speed Chainset from Shimano offers efficient power transfer, smooth gear shifting performance and top-quality race-ready reliability. Ideal for competitive road racing, this chainset offers the optimal balance of stiffness and strength at a low weight. Plus, it features Hollowtech II crank arms, a Hollowglide outer chainring and is compatible with most modern bottom bracket standards from Shimano.Shimano's Ultegra FC-R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, Ultegra cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms. An integral part of Shimano's new 12-Speed road lineup, the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-Speed shifting, the Ultegra crank is now offered in lengths from 160 to 175 mm, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanical requirements. Hollowglide ChainringHollow technology on the outer chainring. The Hollowglide construction ensures high rigidity while its hollow structure cuts down on weight yet maintains strength. This provides better power transfer and quicker and more precise front shifting performance. Hollowtech II Forged Crank ArmsA lightweight crankset not only reduces the bike's weight but decreases rotating mass to aid in acceleration. The challenge is to reduce the weight of the crank without reducing its strength and rigidity. Shimano's advanced forging technology has solved the problem through the HOLLOWTECH crank. Just like high-quality frame tubing, a hollow crank arm can provide amazing strength and rigidity at very lightweight. Optimised Balance of Stiffness, Strength and WeightThe concept of Hollowtech II technology is focused on producing a superior crankset that will maximize a rider's power transfer. The rigidity of the crankset ensures pedalling efficiency while its low weight, a key element of the crankset, aids in cycling longer distances over which the rider needs to pedal more. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedalling stability, allowing for more efficient power transfer. Features: Material: Hollowtech II Aluminium Series: Ultegra R8100 Series Optimal balance of stiffness, strength, weight and rotational performance HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting Recommended Bottom Bracket: Press-Fit: SM-BB72-41B; Threaded: SM-BBR60 Q-Factor: 148mm Chainline: 44.5mm Drivetrain Speeds: 12-Speed Weight: 711g (52-36T); 700g (50-34T)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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Shimano Ultegra R8050 Di2 11 Sp Shifter Set - AU - Grey - Pair}, Grey
  • £299.99

Shimano Ultegra R8050 Di2 11 Sp Shifter Set - AUShips from Australia - Estimated delivery in 2-4 business days.Enjoy accurate and optimised shifting with this 11 Speed Shifter Set from Shimano. Benefiting from an updated ergonomic design, it separates the shift buttons clearly, so you can efficiently work the buttons when out on the road, even through thick gloves. Multi-ShiftEach switch on this Shimano Ultegra R8050 Di2 2x11-Speed Shifter Set can be used to multi-shift. Additionally, the top hood buttons can be programmed and customised through the Shimano E-Tube app or PC software to control third-party devices.Features: Ergonomic design with greater reach Light action, define click engagement, vivid index shifting Updated internal shifting unit Powerful and controllable braking system Control third-party devices Multi-shift function Use: Road, Cyclocross, Touring, Time Trial, Commuter Material: Carbon Fibre (brake lever) Brake Levers/Gear Shifters: Shimano Ultegra Series: Ultegra Shifters: Shimano XT Speed: 11 Speed Weight: 295g Part No: ST-R8050-RTechnologies: Di2: The power and precision of Di2 are unmatched. It enables beautifully smooth shifting both front and rear. The lack of maintenance and adjustment is impressive: once you’ve customised your Di2 to shift to your preferences, it will continue to do so endlessly. E-Tube: Change all Di2 functions and operations through the shifter buttons behind the brake levers, the top hood buttons, or satellite buttons for Time Trial/Triathlon, sprinting and climbing. You can easily customise shift speed, multi-shift options and Synchro Shift. You can also customise the top hood buttons to control third party-devices, for example, to scroll through bike computer menus. The functionality on third-party computers also allows you to display Di2 system information, such as battery level and the gear you’re in.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 Ultegra R8170 C60 CL Front Disc Wheel - Black - 700c}, Black
  • £299.99
  • RRP £579.99
  • Saving you £48

Shimano Ultegra R8170 C60 Carbon CL Front Disc WheelThe Ultegra R8170 C60 Carbon CL Disc Wheel from Shimano features a 60mm-deep full-carbon rim that's ideal for high-speed and flatter race events. Suited to time trial and triathlon races, this wheel is tubeless ready for fast rolling speeds, low rolling inertia and exceptional grip in all conditions. And it's compatible with Shimano 11 and 12-Speed gear systems and it features a centre lock rotor mount for use with disc brakes.Designed for the highest speed environments and modern tyre widths, the Ultegra C60 front wheel shares its all-carbon rim profile with Dura-Ace but employs a hub that is compatible with both 11 and 12-speed cassettes.For situations where aerodynamics is the priority, the new Ultegra R8170 C60 front wheel features an all-carbon, 21 mm internal, tubeless compatible rim and a super-fast cup and cone bearing hub that is compatible with both 11 and 12-speed cassettes.Centre-Lock Disc Rotor MountThe Centre Lock system makes an easy rotor installation possible with a spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.D2 Aerodynamic Rim ProfileAerodynamic performance is affected by wind direction. To create the D2 rim, Shimano engineers considered both frontal and crosswinds, aiming to achieve optimal performance in real-world riding conditions. Extensive prototype testing, in the wind tunnel and on the road, proved that a wide rim shape with a deep tyre bed performs best across a wide range of conditions. At yaw angles ranging from 0 to 15 degrees, the Shimano D2 rim profile reduces air drag better than others aero shape rims. This rim design also boosts lateral wheel stiffness and offers improved vertical compliance for increased control, comfort and durability on the road.Shimano E-Thru Axle SystemThe tool-less type thru-axle skewer system optimizes rigidity and weight balance and enables easy operation with a reliable internal cam mechanism. The 15 mm thru-axle system is 15% stiffer torsionally and 25% stiffer in transverse shear than a traditional 9 mm quick release front axle system. High rigidity is secured while keeping the optimum weight balance. The E-Thru axle hub system minimizes the distortion of suspension while maintaining lightweight for riding around sharp corners at high speed.Features: Series: Ultegra R8100 Series Rim: Carbon Tubeless Ready Type: Clincher 60mm height full Carbon rim Internal Rim Width: 21mm Shared rim profile with R9200 Dura-Ace wheels Improved aerodynamics Axle: 12mm E-THRU Disc Rotor Mount: Centre Lock Weight: 738gA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Birzman Studio Tool Box
  • £299.99
  • RRP £449.99
  • Saving you £33

The Birzman Studio Tool Box is a collection of essential tools for high-quality bike maintenance designed to give the mechanic or home tinkerer an efficient and professional quality tool kit. Designed to make sure every job carried out is done to the highest standard, the Essential Tool Box includes 37 carefully selected tools in a spacious and well laid-out box to give you the best in quality tool for the job at hand. Includes:T10/T15/T20/T25/T27/T30/T40 torx keys1.5/2/2.5/3/4/5/6/8/10mm Hex Keys1/2" socket wrenchChain Wear IndicatorPatch kitTyre Lever SetBladed Spoke GripValve core toolT30 socketShimano Cartridge BB toolShimano HG Cassette toolShimano MF Freewheel toolUniversal ISIS/Octalink crank pullerCable Cutter16-notch 44mm Hollowtech II B.B. Tool8-notch Hollowtech and 16mm internal hex SRAM crank caps crank arm installation tool12G / 13G / 14G / 15G /Shimano 4.3 / 4.4 spoke wrenches5-12 speed chain rivet extractor8/10mm combination wrench15mm Pedal wrenchChain whipFlathead &  Crosshead screwdriversFileChain link pliers14/15mm hex wrenches0-33mm adjustable wrenchDisc brake piston pressDisc brake gap indicator1 , 1 1/8 & 1 1/4 threadless saw guideThreadless nut setting toolDiagonal pliersChainring nut wrenchRadio pliersDead blow hammer3m/10ft tape measure

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Shimano ST-R8170 Ultegra Di2 STI Shift / Brake Lever - Front Shift / Rear Brake
  • £299.99
  • RRP £349.99
  • Saving you £14

Road riding has never been this much fun. That's because the redesigned Ultegra ST-R8170 Dual Control Levers have all-new ergonomics, even more precise brake modulation, and wireless electronic shifting. This trifecta lets you focus on the next sprint, the next descent, or the next joke from your riding partner.Shimano's new Ultegra ST-R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven Servo Wave technology. The all-new Di2 platform, used on both Dura-Ace and Ultegra, untethers the shifters while delivering our fastest, most reliable wireless shifting. Your time on the bike is precious, let Shimano make it even better.High performance Ultegra Wireless hydraulic Servo Wave disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditionsWireless connectivity to the front and rear derailleurs for effortless trouble free gear shiftsWith 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 gearFull and semi synchronized shifting programable, Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratioSimply pressing tactile buttons allows effortless and comfortable shifting even when your hands are coldDrop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STIHydraulic brake lever with Servo Wave provides excellent stopping power with less effort especially from the hood positionHydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wearFinely tuneable reach adjusters for the levers enable custom fitment for all handsLevers use CR1632 batteries which last for approximately 1.5-2 years

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Shimano ST-R8170 Ultegra Di2 STI Shift / Brake Lever - Rear Shift / Front Brake
  • £299.99
  • RRP £349.99
  • Saving you £14

Road riding has never been this much fun. That's because the redesigned Ultegra ST-R8170 Dual Control Levers have all-new ergonomics, even more precise brake modulation, and wireless electronic shifting. This trifecta lets you focus on the next sprint, the next descent, or the next joke from your riding partner.Shimano's new Ultegra ST-R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven Servo Wave technology. The all-new Di2 platform, used on both Dura-Ace and Ultegra, untethers the shifters while delivering our fastest, most reliable wireless shifting. Your time on the bike is precious, let Shimano make it even better.High performance Ultegra Wireless hydraulic Servo Wave disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditionsWireless connectivity to the front and rear derailleurs for effortless trouble free gear shiftsWith 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 gearFull and semi synchronized shifting programable, Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratioSimply pressing tactile buttons allows effortless and comfortable shifting even when your hands are coldDrop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STIHydraulic brake lever with Servo Wave provides excellent stopping power with less effort especially from the hood positionHydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wearFinely tuneable reach adjusters for the levers enable custom fitment for all handsLevers use CR1632 batteries which last for approximately 1.5-2 years

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