The Shimano XT M8100 rear derailleur brings a new level of drivetrain silence thanks to decreased tension in the low gear position and an added bumper on the pulley cage. Larger 13T pulleys increase efficiency and chain management while compatibility with Shimano's new 12-speed cassettes boosts range.Key Features:XT Shadow plus 12-speed rear derailleur for fast and precise shifting performance optimized to take on any trail,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,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 12-speed 1x drivetrains,Durable sealed 13T bearing pulleys for low friction,Top normal spring uses the spring to select higher gears,Max low sprocket: 51T (1x 12-speed),41T capacity SGS cage,Average weight 284g,.
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.
Great value Altus rear derailleur offering crisp performance on- and off-road for 9-speed drivetrainsWide link design increases rigidity and service life,11-tooth pulleys for reduced pulley wear and chain noise,Advanced light action design with low friction fluorine coated link pivot bushings,Top-normal swing design,Total capacity 45T,Compatible with 32-36T low sprocket,Compatible with 9-speed Hyperglide sprockets.
Instead of telling gravel riders what they needed, we asked them what they wanted. Shimano spent two years listening and countless hours speaking with gravel enthusiasts from all over the world. We took to dirt and gravel roads, narrow singletrack paths, creek crossings, and mountain passes to test ourselves and our notions of drop bar cycling. We pinned on race numbers and packed up bikepacking bags. We choked on dust and reveled in mud. And the result of all that riding and all those new friendships? First, Shimano’s Gravel Alliance and now, Shimano GRX, the world’s first dedicated gravel component series.Choice. Shimano’s new GRX line is all about choice. Shimano doesn’t want to pigeonhole the way you ride, or decide for you what the best solution is for your riding style. While we’ve long been fans of double chainring drivetrains, we also recognize the value of a single chainring system. With GRX, Shimano offers both, each with gearing options that allow you to tailor your drivetrain to suit your tastes.With two different derailleur cage lengths, Shimano GRX ensures stable shifting and chain retention across a wide range of gearing options. Looking for maximum range while maintaining road cassette progression? Go with GRX’s 800 series 2x11 RD-RX810 or Di2 RD- RX815 rear derailleurs, designed for close ratio clusters, with 48/31 chainrings and an 11-34 cassette. Paired with 700c x 40mm tires, it delivers a top gear similar to a road bike with 25mm tires and a 50 x 11 gear. And on the low end, with its 31 x 34 combination, you get a gear that early mountain bikers would envy. It is the lowest gear currently on offer for premium road drivetrains (aside from Shimano’s own GRX 2x10 30-36 offering), perfect for climbing loose, dirt and gravel surfaces.Want to drop some weight, simplify your shifting, and still maintain a versatile range? Consider the 1x11 GRX option with either Shimano’s 11-40 or 11-42 cassette and a 40 or 42-tooth equipped crankset, shifted by a RD-RX812 or Di2 RD-RX817 wide ratio rear derailleur. You’ll lose a little, absolute top speed, but still love the 1:1 low gear ratio. If you live in an area without sustained or steep climbs, you might love the smaller gear steps of that same 1x11 front chainring with an 11-34 cassette. Options abound.What about when the weather turns autumnal and you contract a case of cyclocross fever? GRX 1x11 can quickly transform from gravel fun to CX focused with the change of a cassette.No matter the option you select, GRX rear derailleur offerings feature Shimano’s SHADOW Plus chain stabilizer that can be turned on or off depending on conditions. SHADOW Plus revolutionized the mountain bike world and now it’s been tuned for gravel and rough road riding in GRX. With a quieter drivetrain, SHADOW Plus helps you engage with your surroundings and enjoy time outside.Today’s gravel riders demand more of their bikes and of themselves. Shimano GRX gives them the options they need to Explore Beyond, tailoring their drivetrains to suit their needs and exceed their expectations. We’ll see you out there!Designed for riding on rough roads, through gravel and mud, to be able to carry on in comfort, stress-free, to wherever you want, to allow you to achieve that unique sense of accomplishment. The first groupset designed for Gravel riding Explore beyond. Introducing SHIMANO GRX.Game-Changing Innovation.Even on the roads less travelled, our new GRX tech will keep things smooth, silent and safe – with you always in control.Designed from the ground up for gravel adventure.Mix and match components to customise your bike for a wide range of terrains – and ride the way you want!Key Features:Adjustable chain stabilizer prevents chain slapping and drops,Toggle clutch ON/OFF to match the terrain,Switch stabilizer ON/OFF to match the terrain,Gravel-tuned clutch tension,Silent and uninterrupted rear shifting on rough terrain,Low sprocket: Max. 34T/Min. 30T,Total capacity: 42T,Smooth and reliable mixed surface shifting,Compatible with current road DUAL CONTROL LEVER,Maximum front difference: 17T,Top sprocket: Max. 11T/Min. 11T.
Key Features:Deore Shadow plus 10-speed LINKGLIDE rear derailleur for fast and precise shifting performance with increased 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,13T pulleys and decreased derailleur tension prevent high chain tension in low gears,Direct cable routing prevents snagging from any trail side hazards,Cold forged wide alloy links and pivot body,Fluorine-coated link pin bushings,Strong return spring for a positive shifting feel,Specifically designed to work with LINKGLIDE shifter and 10-speed 1x drivetrains,Top normal spring uses the spring to select higher gears,Max low sprocket: 43T (1x 12-speed),32T capacity GS cage.
Ultegra components offer an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive ridersLow profile aerodynamic direct mount Super SLR-EV Dual-Pivot design provides superior brake performance and light action,Must be used in conjunction with super SLR levers for correct leverage ratio,Enhanced brake arch proportions give a quicker linear response and increased power,Can be used on frames with seatstay direct mounts,Low profile outer cable stop position improves cable routing for reduced friction,Cartridge brake shoes for easy replacement,Convex washers on the brake shoes offer toe-in brake adjustment and easy alignment,Lightweight aluminium construction, with an anodised finish to preserve the good looks,Added clearance for compatibility with 28C tire size.
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..
Wide link Shadow design Dyna-Sys 10-speed top normal Deore rear derailleur,Shadow Plus features a super low profile design that reduces the risk of damage from trail side hazards,Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain,Direct Mount compatible Rear Derailleur system gives more space around the rear frame dropout resulting in easier rear wheel removal but also allows frame designers to shorten chain stays, increase axle sizes and move suspension pivots,Single tension spring prevents contact with the chainstay resulting in a silent ride,Direct cable routing prevents snagging from any trail side hazards,Alloy and steel construction leads to lower weight without compromising strength and durability,Wide link design increases rigidity and service life,Top normal return spring lends to incredibly intuitive operation when combined with Rapidfire shifters,Large 11 tooth pulleys are used for longer life,Two fluorine-coated link bushings for low-friction operation,Dyna-Sys HG-X 10-speed compatible only,Compatible with 42T low sprocket GS,Compatible with 32-36T low sprocket SGS.
Instead of telling gravel riders what they needed, we asked them what they wanted. Shimano spent two years listening and countless hours speaking with gravel enthusiasts from all over the world. We took to dirt and gravel roads, narrow singletrack paths, creek crossings, and mountain passes to test ourselves and our notions of drop bar cycling. We pinned on race numbers and packed up bikepacking bags. We choked on dust and reveled in mud. And the result of all that riding and all those new friendships? First, Shimano’s Gravel Alliance and now, Shimano GRX, the world’s first dedicated gravel component series.Choice. Shimano’s new GRX line is all about choice. Shimano doesn’t want to pigeonhole the way you ride, or decide for you what the best solution is for your riding style. While we’ve long been fans of double chainring drivetrains, we also recognize the value of a single chainring system. With GRX, Shimano offers both, each with gearing options that allow you to tailor your drivetrain to suit your tastes.With two different derailleur cage lengths, Shimano GRX ensures stable shifting and chain retention across a wide range of gearing options. Looking for maximum range while maintaining road cassette progression? Go with GRX’s 800 series 2x11 RD-RX810 or Di2 RD- RX815 rear derailleurs, designed for close ratio clusters, with 48/31 chainrings and an 11-34 cassette. Paired with 700c x 40mm tires, it delivers a top gear similar to a road bike with 25mm tires and a 50 x 11 gear. And on the low end, with its 31 x 34 combination, you get a gear that early mountain bikers would envy. It is the lowest gear currently on offer for premium road drivetrains (aside from Shimano’s own GRX 2x10 30-36 offering), perfect for climbing loose, dirt and gravel surfaces.Want to drop some weight, simplify your shifting, and still maintain a versatile range? Consider the 1x11 GRX option with either Shimano’s 11-40 or 11-42 cassette and a 40 or 42-tooth equipped crankset, shifted by a RD-RX812 or Di2 RD-RX817 wide ratio rear derailleur. You’ll lose a little, absolute top speed, but still love the 1:1 low gear ratio. If you live in an area without sustained or steep climbs, you might love the smaller gear steps of that same 1x11 front chainring with an 11-34 cassette. Options abound.What about when the weather turns autumnal and you contract a case of cyclocross fever? GRX 1x11 can quickly transform from gravel fun to CX focused with the change of a cassette.No matter the option you select, GRX rear derailleur offerings feature Shimano’s SHADOW Plus chain stabilizer that can be turned on or off depending on conditions. SHADOW Plus revolutionized the mountain bike world and now it’s been tuned for gravel and rough road riding in GRX. With a quieter drivetrain, SHADOW Plus helps you engage with your surroundings and enjoy time outside.Today’s gravel riders demand more of their bikes and of themselves. Shimano GRX gives them the options they need to Explore Beyond, tailoring their drivetrains to suit their needs and exceed their expectations. We’ll see you out there!Designed for riding on rough roads, through gravel and mud, to be able to carry on in comfort, stress-free, to wherever you want, to allow you to achieve that unique sense of accomplishment. The first groupset designed for Gravel riding Explore beyond. Introducing SHIMANO GRX.Game-Changing Innovation.Even on the roads less travelled, our new GRX tech will keep things smooth, silent and safe – with you always in control.Designed from the ground up for gravel adventure.Mix and match components to customise your bike for a wide range of terrains – and ride the way you want!Key Features:Adjustable chain stabilizer prevents chain slapping and drops,Switch stabilizer ON/OFF to match the terrain,Gravel-tuned clutch tension,Maximum front T difference: 16T,Silent and uninterrupted rear shifting on rough terrain,Low sprocket: Max. 36T/Min. 30T,Total capacity: 41T,Smooth and reliable mixed surface shifting,Compatible with current 10s road DUAL CONTROL LEVER,Wide range front gearing,Top sprocket: Max. 11T/Min. 11T.
High quality, long lasting rear rack mounted lithium-ion battery pack for Shimano STEPS systems1000 charge cycles without significant power loss,Approximately four hours charge time,High 418Wh capacity (36V, 11.6Ah),Average weight 2600g.
Key Features:Wide link Shadow design Dyna-Sys 10-speed top normal Deore rear derailleurDouble servo-panta mechanism for smooth light action shifting,Single tension spring prevents contact with the chainstay resulting in a silent ride,Alloy and steel construction leads to lower weight without compromising strength and durability,Wide link design increases rigidity and service life,Top normal return spring lends to incredibly intuitive operation when combined with Rapid fire shifters,Large 11 tooth pulleys are used for longer life,Two fluorine-coated link bushings for low-friction operation,Dyna-Sys HG-X 10-speed compatible only,47T capacity SGS cage,Compatible with 32-36T low sprocket.
Key Features:RD-M8120 XT 12-speed rear derailleur,Shadow+,SGS,For double.