To integrate the use of dropper posts in gravel, SHIMANO created the GRX mechanical ST-RX810-LA left hydraulic disc brake lever that, when used with a 1x11 drivetrain, can control a dropper post while also keeping the cockpit tidy. The use of an integrated cable pulling system allows for 9mm lever throw to operate a dropper post.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:Integrated cable pulling system,9 mm max cable stroke,Control ASP from shifting lever,Streamlined cockpit minimizes stress and distractions.
SAINT-level PD-M821 is one half of Shimano's most advanced Downhill and Enduro-specific pedals offering ultimate bike control, contact, grip and durability with SPD efficiency and stabilityDouble-sided durable alloy pedal body protects the SPD mechanism from impacts whilst a low profile design lowers the stack height,Four adjustable pins per side offer grip when you're not clipped in,Replaceable pins, screwed in from the back for easy maintenance,low-maintenance sealed cartridge bearing chromoly axles,Weight: 546 grams per pair.
Key Features:All-mountain SLX HollowTech II crank set is tough and aggressive yet also lightweight and excellent value,The HollowTech II Chainset features hollow forged crank arms which are both lightweight and rigid whilst being incredibly strong and durable,HollowTech II integrated bottom bracket design uses a wide bearing placement with a large axle diameter for increased stiffness, efficiency and added durability,70 degree spider arm for optimal rigidity,For 12-speed SM-CRM75 chainring (sold separately),SM-CRM75 chainring teeth feature ShimanoÔÇÖs new Dynamic Chain Engagement technology offering enhanced chain retention, driving rigidity and highly efficient,We recommend that the bottom bracket is initially installed by a bike shop to ensure perfect facing and fit,For use with 12-speed HG+ MTB chains only,With a 55 mm single ring chain line for use in conjunction with 148 mm O.L.D..
Ultegra hydraulic road disc brake offer an ideal balance of light weight and efficient braking, making it the perfect choice for both enthusiast and competitive ridersRear wheel use for 140 mm flat mount frames, can be used with adapter for 160 mm,Front wheel use for flat mount forks with adapter to flip between 140 and 160 mm,Oversized 22mm ceramic pistons optimized for heat insulation, lightweight and stiffness,Opposed 2-piston design reduces leading effect and optimal pad wear increases braking control,Increased pad to rotor clearance reduces the chance of rotor drag,Direct flat mount and open design allows easy and quick wheel replacement,Forged calliper design is lightweight and rigid,One way internal fluid circuit makes bleeding easy,Mineral oil brake fluid is non-corrosive and less hazardous than conventional hydraulic brake fluid,Shim-less mounting bracket allows for quick installation and setting up,Recommended for use with Ice Tech FREEZA Centre-Lock SM-RT800 rotors for optimum braking performance,Comes complete with resin compound aluminium radiation fin pad further improves heat dissipation reducing brake surface temperature by 50 deg C,Inline hose routing for low profile design.
Key Features:Lightweight 12-speed HG+ cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes,Hyperglide+ sprockets have been designed to reduce weight with improve teeth shaping providing accurate shifting and reduced wear,Wide gear range to meet the demands of all types of rider,For use with 12-speed chains.
Deore M6100 12-speed Hyperglide+ chain for smooth shifts and maximum durability. Shimano 12-speed Hyperglide+ chains have computer designed plate profiles to operate seamlessly with Shimano DCE 12-speed chainrings and cassette sprockets, resulting in 1/3 faster shift time than Hyperglide systems even under loadKey Features:Outer plate design has been developed to reduce the chance of chain suck,For use with 12-speed HG+ drivetrains,Comes complete with Quick Link which enables fast tool free chain assembly.
Key Features:Super narrow lightweight 12-speed Hyperglide+ chain for smooth shifts and maximum durability,Shimano 12-speed Hyperglide+ chains have computer designed plate profiles to operate seamlessly with Shimano DCE 12-speed chainrings and cassette sprockets, resulting in 1/3 faster shift time than Hyperglide systems even under load,Outer plate design has been developed to reduce the chance of chain suck,Sil-Tec surface treatment technology (PTFE plating) on inner and outer links and rollers that is smooth running and increases durability,For use with 12-speed HG+ drivetrains,Comes complete with Quick Link which enables fast tool free chain assembly,.
Precision-engineered Ultegra STI levers with carbon levers offer powerful braking and effortless 11-speed shifting, making them the ideal choice for both enthusiast and competitive ridersShift cables are routed under the bar tape: re-development and positioning of the internal mechanism in combination with Polymer coated cables have made this possible, providing faster, lighter and smoother shifting,Vivid indexing provides a constant amount of shift lever force across all 11 sprockets,Ergonomic shift arc follows natural hand movement with inward shift stroke distance reduced for rapid and precise gear changes,Powerful and controllable braking thanks to SLR-EV compatibility,Tuneable reach adjusters enable custom fitment for all hands.
Great value front derailleur that delivers accurate and low-friction shifting,Compatible with 6-speed drivetrains,Down swing (conventional) design is light action and compatible,For use on MTB style bikes with 66 to 69 degree seat tube to chainstay angle,Developed to work with 42 tooth outer chainring.
Key Features:SM-CRM85 Single chainring for XT M8100 / M8130.