Key Features:XTR Shadow plus 12-speed double rear derailleur for the ultimate in shifting performance and durability,Shadow plus features a super low profile design and optimized slant angle for super light shifting action,Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting,Single tension spring prevents contact with the chainstay resulting in a silent ride,Rubber bumper on pulley cage for added silent drive,13T pulleys and decreased derailleur tension prevent high chain tension in low gears,Direct cable routing prevents snagging from any trail side hazards,Full carbon fibre outer pulley cage saves weight while alloy inner cage increases rigidity,Cold forged wide alloy links and pivot body,Four fluorine-coated link pin bushings,Strong return spring for a positive shifting feel,Specifically designed to work with XTR M9100 12-speed double drivetrains,Durable sealed 13T bearing pulleys for low friction,Top normal spring uses the spring to select higher gears,Max front difference 10T,Max low sprocket: 45T (2x 12-speed),41T capacity SGS cage,Average weight 241g.
Key Features:Optimized for new drive system,10-45T (12-speed),10-45T (11-speed),Decreased rear derailleur tension at low gear position, to prevent high chain tension at low gear,Add bumper at rear derailleur pulley cage for silent drive,Bigger 13T pulley,28 mm better ground clearance (vs. RD-M9100-SGS),Enhance shifting performance,Low sprocket combination,Silent drivetrain,Low profile design,For more aggressive riding..
Key Features:WH-M8100,27.5" (650b) XT wheel,12-speed,12x148mm,Centre Lock disc,Rear Wheel.
Key Features:WH-M8100 29er XT wheel,12-speed,12x148mm E-thru,Center Lock disc,Rear Wheel.
With this Shimano Ultegra Di2 front derailleur board your ride, quick and smooth front shifting is guaranteed under all circumstances, even when you’re shifting to the large chainring while riding out of the saddle. Due to Shimano Synchronised Shift, the front derailleur will shift automatically when the rear derailleur is shifted, allowing both of your road bike's Shimano Di2 derailleurs to work together efficiently. Customisable Electronic Shifting With the Semi- Synchronised Shift feature that’s also on the Shimano Ultegra Di2 R8050 front derailleur, it’s the other way around. The rear derailleur shifts automatically when the front derailleur is shifted, obtaining optimal front/rear gear positioning. At the same time, Di2’s auto-trim feature will automatically centre the front derailleur precisely around the chain, avoiding chain rub as you move the chain across the cassette. This is how fast, precise and smooth your shifting can be.
This stunning model features oversized 13T pulley wheels, updated Shadow RD+ mechanism and is tailored specifically to provide maximum chain retention and shifting accuracy across the new Shimano 12-Speed drivetrain transmission system. This derailleur has been redesigned to ensure that chain tension is decreased when in the low gear position (41T on cassette), which makes shifting easier while the Shadow+ mechanism ensures chain stability.
Shimano Ultegra Di2 R8050 11sp Front DerailleurRedesigned to be compatible with a wider 11-speed gear range but still retaining the same slick shifting ability, the Ultegra Di2 R8050 is a real game changer. Stiff and efficient enough to change gears cleanly even when you’re pedalling hard out of the saddle, it’s the ideal front derailleur upgrade for your Shimano Ultegra Di2-equipped road bike.Shimano Synchronised ShiftingUtilising Shimano's innovative Synchronised Shift, the front derailleur automatically shifts when the rear derailleur is shifted, which means that both derailleurs work together seamlessly. Conveniently, this shifting technology works the other way around, too; so, the rear derailleur shifts automatically when the front derailleur is shifted. This means you will always have optimal front/rear gear positioning. Di2’s auto-trim feature automatically centres the front derailleur precisely around the chain, which avoids chain rub as you travel across your cassette. Welcome to the New-Age of performance-oriented shifting.Features: Speed: 11-Speed Mount Type: Braze-On Compatibility: Ultegra R8000 Di2, Dura-Ace 9100 Di2 (Shimano 2x11-Speed electronic drivetrains only) Chain Stay Angle: 61-66° Top Gear Teeth: 46T-53T Total Capacity: 16T E-Tube Ports: 1 SD50 Ports: 1 Updated pull arm for more direct and easy shifting Improved clearanceUpgraded to shift under high pedalling torque Synchronised Shift (Full and semi-synchronised shifting program) Programmed chainguide control Redesigned to fit a wider gear pitch without sacrificing shifting performance Shorter rear-centre length (410mm) System communication with Di2 rear derailleur, meaning minimal chance of chain drop Weight: 132gTechnologies: Di2: The power and precision of Di2 is 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 Shimano Synchronised Shift: With the customisation of the E-Tube Project app, both front and rear derailleurs are automatically selected for the most optimal gear combination 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.
Shimano XTR M9120 12 Speed MTB Rear DerailleurThe Shimano XTR M9120 Rear Derailleur features an elegant, refined and optimised design, which is aimed at providing maximum drivetrain efficiency over the most demanding terrain. The derailleur has been redesigned to ensure that chain tension is decreased when in the low gear position (41T on cassette), which makes shifting easier while the Shadow+ mechanism ensures chain stability. Featuring oversized 13T pulley wheels, updated Shadow RD+ mechanism and is tailored specifically to provide maximum chain retention and shifting accuracy across the new Shimano 12-Speed drivetrain transmission system.Features: Material: Aluminium, Stainless Steel Drivetrain Speed: 12-Speed Low Sprocket Max: 45T Low Sprocket Min: 45T Top Sprocket Max: 10T Top Sprocket Min: 10T Total Capacity: 41T G Pulley Bearings: Sealed Link Bushings: Fluoric coated Pulley Teeth: 31T Spring Type: Shimano Shadow RD+ Compatible Chain: CN-M9100 Weight: 241gBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
DT Swiss P 1800 SP 23mm Rear Bike WheelTaking you through long-distance road rides with excellent stiffness and balance, this P1800 SP (straight pull) rear wheel by DT Swiss is a strong and dependable addition to your road bike's back-end. Boasting a sturdy aluminium rim, this hard-wearing back wheel deals superbly with the pressures and impacts of fast road riding. Tubeless ready, the rim's 18mm internal width supplies a steady and true roll and keeps you moving with agility and control. Strong and Sturdy, Aluminium Rear Road WheelDT Aero Comp spokes assist with the aerodynamic performance of this fast-rolling wheel while strengthening the build for durable, long-lasting performance. The spokes are pulled to optimal tension by the ProLock nipples and are laced through the smooth-spinning DT370 hub. The hub ensures a minimal-friction rotation for the wheel and houses a 3-pawl freehub with Shimano 11-speed compatibility to give you extra thrust when you need it most. The tubeless-ready design also minimises the weight of the DT Swiss P 1800 SP 23mm Rear Wheel, with a durable and efficient aluminium rim brake surface giving a reliable stopping experience, even in wet conditions.Features: Rim Material: Aluminium Rim Type: Clincher Internal Rim Width: 18mm External Rim Width: 23mm Rim Height: 23mm Brake Compatibility: Rim brake Compatible Tyres: Standard clincher or tubeless clincher Spokes: DT Aero Comp Wide straight pull Spoke Nipples: DT ProLock Squorx ProHead aluminium nipples Spoke Pattern: 2-cross lacing Hub Type: DT370 Hub Axle Type: 130x5mm Quick Release (QR) Freehub Type: 3-Pawl Cassette Compatibility: Shimano/SRAM 9,10 and 11-Speed road bike cassettes (not SRAM XD) Tubeless-Ready: Yes Brake Standard: Rim Brake Recommended Maximum Weight: 120kg Included: ECO Synth. RWS, Tubeless tape 21mm, Tubeless 32mm Presta valve Crash Replacement Discount Program: No (DT Swiss offers this on its Carbon wheels only) Weight: 906g Buy DT Swiss Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
DT Swiss P 1800 SP Rear Road Disc Wheel (23mm)Prepared for clocking up the miles on your road bike, this rear wheel gives you long-lasting performance and a well-balanced experience on every ride. It features a hard-wearing aluminium rim construction, which allows it to handle all the intensity that comes with long distance road bike journeys. Durable and hard-wearing, the rim maintains a steady and powerful performance, mile after mile, while the tubeless-ready profile helps to lower the overall weight.Features: Material: Aluminium Rim Dimensions: Internal Rim Width: 18mm; External Rim Width: 22mm Rim Height: 23mm Spokes: DT Aero Comp Wide straightpull with DT ProLock Squorx ProHead aluminium nipples, 2-cross lacing Hub Type: DT370 Hub Axle Type: 12x142mm thru-axle Freehub: 3-Pawl, Shimano 11-speed Tubeless-Ready: Yes Brake Standard: CenterLock disc brake Recommended Maximum Weight: 120kg Includes: Tubeless tape 21mm, Tubeless valve road 32mm, IS 6-bolt adapter Road, 5mm endcap KitBuy DT Swiss Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
The HollowTech II 12-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders HollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high load The chainring teeth have been developed to work in conjunction with 12-speed HG chains for increased contact to provide greater efficiency and improved power transfer Industry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight Wide gear pitch spacing increases clearance between chain and leading teeth to provide compatibility to frames with O.L.D. 135 / 142 mm A wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplines HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability(sold separately)
The HollowTech II 12-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders HollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high load The chainring teeth have been developed to work in conjunction with 12-speed HG chains for increased contact to provide greater efficiency and improved power transfer Industry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight Wide gear pitch spacing increases clearance between chain and leading teeth to provide compatibility to frames with O.L.D. 135 / 142 mm A wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplines HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability(sold separately)