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,Silent and uninterrupted rear shifting on rough terrain,Smooth and reliable mixed surface shifting,Compatible with current road DUAL CONTROL LEVER,Top sprocket: Max. 11T/Min. 11T,Low sprocket: Max. 42T/Min. 40T,Total capacity: 41T.
The HollowTech II 12-speed Dura-Ace chainset offers the optimum balance of light weight and rigidity, making it the global choice for road racing's elite ridersHollow outer chainring, giving vast improvements in rigidity and increased weight savings,The hollow outer chainring has essentially removed outer chainring flex, hugely improving shift performance making it precise even under high load,These industry leading HollowTech II 4 arm cold forged hollow crank arms have been evolved to increase rigidity, reduce weight, and improve strength,The teeth have been developed to work only in conjunction with the 12-speed chains for improved contact providing more efficiency and improved power transfer,There is a wide range of chainring ratios and crank arm lengths available enabling customisation for all riders and racing disciplines,HollowTech II integrated bottom bracket design uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency,Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling and increased durability.
Elite road racers demand reliable and precise shifting, 12-speed Dura-Ace R9150 delivers with its super-lightweight and compact designSynchronized Shift designed, developed to choose the next biggest or lowest gear ratio irrespective of whether a gear change needs to be made by the front or rear derailleur,The 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 derailleur,The biggest difference you will notice is just how much quicker and effortlessly smoother shifting on the front chainrings is, even under load,The 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 shifts,The 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 ahead,Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available,12-speed E-tube SD300 wire compatible.
Key Features:2-piece design double-ring 9-speed chainset from the excellent value Sora range,SG-X chainrings feature strategically placed chain pick-up pins and tooth profiles to ensure fast and positive shifting,2-piece design allows the bottom bracket bearings to be spaced wider apart (outboard the frame) or press fit 86.5mm enabling the use of larger bearings and an increased axle diameter,There is also the benefit of easier installation, adjustment and maintenance,Compatible with Hyperglide (HG) chains,Aluminium crank arms,Aluminium outer chainring with hard-wearing steel inner chainring,Compatible with 9-speed drivetrains..
New ULTEGRA R8000 series is "pro-proven" as it is a direct trickle down from DURA-ACE groupset. As road bike component, the stress-free operation is one of the most important feature to lead all day riding comfort with braking and shifting.Available with or without Brake Caliper and MountKey Features:Smaller lever size and new positioning improves ergonomics,Dedicated lever control for riders with smaller hands,Redesigned internal shifting unit,Greater control in all conditions for riders with smaller hands,Quick and intuitive rear shifting operation,Same light shifting operation as ULTEGRA R8000.
Key Features:RD-M7100 SLX 12-speed rear derailleur,Shadow+,SGS,For single.
Deore M6100 Shadow plus 12-speed rear derailleur for dependable shifting performance and durability. Shadow plus features a super low profile design and optimized slant angle for super light shifting action and a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting.Key Features: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,Durable 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.
ST-EF505 3-speed hydraulic STISHIMANO - Hydraulic Disc Brake - EZ FIRE PLUS - Shift/Brake Lever - 3x Front Speeds The SHIMANO ST-EF505 series Shift/Brake levers combine Reach Adjust, EZ FIRE Plus shifting, an OPTICAL GEAR DISPLAY, and hydraulic stopping power in a durable assembly. Clean cockpit with compact and integrated appearance ,Easy setup, simple control and stable brake performance for regular riders ,Funnel bleeding for easier maintenance ,Clean cable routing ,Same braking power as the M315-kit ,3 finger alloy brake lever comfortable for ordinary riders ,OPTISLICK steel cable for a lighter operating force and better compatibility with the internal cable frame ,EZ FIRE PLUS .Integrates smoothly with 3-finger alloy hydraulic BL for an overall increase in ergonomics and total system design ,3 finger alloy brake lever comfortable for ordinary riders ,Clear shift response and light action shifting performance ,EZ FIRE PLUS..
Digital Integrated Intelligence or Di2: with programmed automatic motion at the touch of a switch the Dura-Ace Di2 rear derailleur is quick, smooth and effortless, making for unmatched drivetrain efficiencyProgrammed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shift,Synchronized Shift designed, developed to choose the next biggest or lowest gear ratio irrespective of whether a gear change needs to be made by the front or rear derailleur,Wireless data network system unit is integrated into mech,The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching,Low profile Shadow derailleur design,Derailleur contains a saver (fuse) function, where the inner structure is protected from strong impacts,11-30T wide gear ratio capacity will cater for compact setups as well as the traditional road double,Full carbon fibre inner and outer pulley plates enhance rigidity and reduce weight,Titanium B axle bolt for further weight savings,High tolerance cold forged aluminium link plates and body construction is extremely light and durable,Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting,Pulleys are made of tough DuPont Zytel for longer life and less chain noise,Direct mount compatible,11-speed E-tube Di2 compatible,Max front difference: 16T,Total capacity: 35T,Weight is 204 grams.
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.
RevoShift features low effort rotational twist shifting action that lets you keeps your hands firmly around the handlebarsKey Features:For use with Nexus 8-speed hub gear system,Easy to read gear indicator,Full range shift action means you can select the gear you want without having to shift through each gear,RevoShift units are for right hand only.