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.
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.
Shimano XT M8050 Di2 11sp Rear DerailleurThe Shimano XT Di2 M8050 11 Speed Rear Mech is designed specifically to work with a Shimano electronic Di2 drivetrain, the M8050 uses a medium cage that can allow you to run up to a 46t cassette.The low-profile geometry and chain stabiliser ensure drivetrain security while the electronic wire transmission maintains consistent performance in all weather and trail conditions.Features:Shifting motor responds instantly to rider inputE-Tube electric wire transmission guarantees consistent performance in all conditionsAccurate chain position in every gearProgrammable, multi-shift and Shimano Synchronised Shift functionsLow-profile design keeps derailleur safely away from trail obstaclesShimano Shadow RD+ chain stabilizer with easy adjustmentCompatible with CS-M8000 11-46t cassette (1X11) and 11-40/11-42 (2x11)Weight: 329gBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
The low-profile geometry and chain stabiliser ensure drivetrain security while the electronic wire transmission maintains consistent performance in all weather and trail conditions.
SRAM X1 Type 2.1 11sp Rear DerailleurEvery detail of the 11-speed X1 X-HORIZON rear derailleur is engineered for smooth, reliable shifting action—from the larger upper pulley offset to the 12-tooth X-SYNC pulley wheels.By eliminating unwanted chain movement, X-HORIZON shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with CAGE LOCK technology, wheel removal and installation are easier than ever. With CAGE LOCK technology in the rear derailleur, wheel removal and installation—as well as chain installation—becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place ROLLER BEARING CLUTCH rear derailleurs deliver maximum drivetrain stability—even through the most punishing terrain. With ROLLER BEARING CLUTCH technology, derailleur bounce and chain slap are eliminated without sacrificing precision Developed specifically for SRAM 1X, X-ACTUATION keeps shifting sharp and consistent across the entire 10- to 42-tooth cassette The X-HORIZON rear derailleur’s ‘straight parallelogram’ design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gears SRAM X-SYNC 1X chainrings provide the highest level of performance and durability. The SRAM X-SYNC tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC chainrings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC rings are an integral part of the SRAM 1X drivetrainFeatures: Speeds: 11-speed Material: Aluminum cage Weight: 256g Compatibility: X-ACTUATION Bearings: Sealed cartridge bearings Pivot Design: Horizontal Parellelogram design Pulleys: 12-tooth X-SYNC pulley wheelsBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
The SRAM Force 1 rear derailleur provides the fastest and quietest 1X11 shifting currently available. Designed to maintain a steady pulley-cassette gap across all gear ranges, the derailleur uses SRAM's one-way roller bearing clutch to control chain tension for consistent shifting. With Roller Bearing Clutch Technology, derailleur bounce and chain slap are eliminated without sacrificing precision. The mech also uses SRAM's Exact Actuation for fast and accurate shifts using SRAM's 1:1 actuation ratio (shifter cable travel; derailleur movement). 10 and 11 speed compatible. The derailleur is finished with cage lock technology which makes wheel removal and installation, as well as chain installation faster and simpler. Simply push the cage forward to create slack and lock it in to place.
Campagnolo Record 12 Speed Rear DerailleurA superbly light and high performing derailleur that's engineered for effortless shifting, so you can reach your peak faster.Lightweight and Highly Durable DerailleurThe Record Rear Derailleur (12 Speed) from Campagnolo is the ideal choice of upgrade for getting the maximum shifting experience from your bike. Made from Carbon fibre-reinforced technopolymer which is not only super-lightweight but also highly robust for years of long-lasting use.Designed with the thrill-seekers and cycling enthusiasts in mind, the Record Rear Derailleur increases your speed, performance and shifting accuracy. The cage has been specially constructed to work alongside sprockets from 11 to 32 teeth which allow a single version to be maintained for all available sprocket sets. Thanks to its 3D Embrace technology which creates a double effect, your chain can maintain optimum traction every time.When riding over harsh roads, the derailleur maintains constant accuracy thanks to the spring between the upper body and the joint which absorbs vibrations, enabling you to have a smooth riding experience.The Record Rear Derailleur (12 Speed) from Campagnolo is the ideal choice for keeping you at the top of your game, ride after ride.Features: Material: Carbon fibre-reinforced technopolymer Constant accuracy Speed: 12 Speed The 12-tooth wheels mean smoother chain movement 3D Embrace technology Ability to adjust the initial derailleur position to adapt to each sprocket set Easy wheel replacement Weight: 0.216kg Buy Campagnolo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
The Record Rear Derailleur (12 Speed) from Campagnolo is the perfect choice of upgrade for getting the ultimate shifting experience from your bike. Made from Carbon fibre-reinforced technopolymer which is not only super-lightweight but also highly robust for years of long-lasting use. Engineered with the thrill-seekers and cycling enthusiasts in mind, the Record Rear Derailleur increases your speed, power and shifting precision. Thanks to its 3D Embrace technology which creates a double effect, your chain is able to maintain optimum traction at all times. The cage has been specially designed to work alongside sprockets from 11 to 32 teeth which allow a single version to be maintained for all available sprocket sets. When cycling over bumpy roads, the derailleur maintains constant accuracy thanks to the spring between the upper body and the joint which absorbs vibrations, allowing you to have a smooth riding experience. The Record Rear Derailleur (12 Speed) from Campagnolo is the ideal choice for keeping you at the top of your game, ride after ride.
More compact and faster than ever, the Ultegra R8150 front derailleur performs digitally precise front shifts under any circumstances. Combining Shimano's new Di2 platform and the road incarnation of Hyperglide+, the Ultegra R8150 front derailleur shifts between chainrings with our fastest, most seamless action.The Shimano Di2 front derailleur's operation is pioneering, smooth shifting is guaranteed thanks to wireless communication with the gear levers. What's more, shifting the rear derailleur automatically trims the front derailleurFull and semi synchronized shifting programable, Synchro shifts 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 ratioThe removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shiftsThe front derailleur also trims automatically; the cage moves in response to the position of the rear derailleur on the cassette to ensure no chain rub and a quiet unobtrusive ride, enabling you to concentrate on the road aheadDesigned to work with the wider gear pitch spacing Shimano chain sets without sacrificing shifting performance on bikes with 135 / 142 mm O.L.D.Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available12-speed E-tube SD300 wire compatible
More compact and faster than ever, the ULTEGRA R8150 front derailleur performs digitally precise front shifts under any circumstances. Combining Shimano's new Di2 platform and the road incarnation of HYPERGLIDE+, the ULTEGRA R8150 front derailleur shifts between chainrings with the fastest, most seamless action on the market. Shimano E-Tube Compatible 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. HYPERGLIDE+ Optimised HYPERGLIDE+ dedicated chain technology delivers greater chain retention, improved shifting efficiency, and smoother transmission over rough terrain. Improved chain retention encourages more aggressive all-terrain riding and relieves chain-issue anxiety. Smoother drivetrain transmission and enhanced shifting performance sharpens riders’ concentration and improves acceleration. Better chain engagement cuts abrasion, reduces maintenance, and lengthens the lifespan of the chain.
Elegantly designed, the XTR M9100 Rear Derailleur is suitable for use with Shimano's 12-Speed drivetrain system and comes equipped with oversized 13T pulley wheels and an updated Shadow RD+ mechanism which is narrower and more discrete to outfox the flow-killing risks of hard-riding mountain biking. Aluminium-made, this compact and convenient derailleur belies its size to give hugely impressive performance.
Shimano XTR M9100 12sp Rear DerailleurThe Shimano XTR M9100 Rear Derailleur features an elegant, refined and optimised design, which is aimed at providing maximum drivetrain efficiency over the most demanding terrain. 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 Use: MTB Speed: 12 speed Compatible Chain: HG 12-speed Low Sprocket Max/Min: M Option: 45T; L Option: 51T Top Sprocket Max/Min: M Option: 10T; L Option: 10T Total Capacity: M Option: 35T; L Option: 41T Pulley Teeth: 13T Pulley Bearings: Sealed Spring Type: Shimano Shadow RD+ Weight: M Option: 237g; L Option: 240gBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.