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:Excellent heat dissipation,Convenient tool access,Simple wheel replacement,Easy and clean bleeding system,Greater multi-surface brake control,Simple set up and maintenance.
Ultegra components offer an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders Dual-pivot calliper brake with super SLR-EV design for quick linear response, increased rigidity and improved braking power,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,Low profile outer cable stop position improves cable routing for reduced friction,Spring tension adjuster for precision set-up,Adjustable toe-in on the brake shoes for easy set up,Added clearance for compatibility with 28C tire size.
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.
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.
Hydraulic Disc Brake CaliperKey Features:Excellent heat dissipation,Convenient tool access,Simple wheel replacement,Easy and clean bleeding system,Greater rider control in all conditions,Simple set up and maintenance.
High performance low profile hydraulic urban disc brake for efficient braking in all conditions.Key Features:Front/Rear wheel use for flat mount forks for 160 mm rotorOpposed 2-piston design reduces leading effect and optimal pad wear increases braking controlIncreased pad to rotor clearance reduces the chance of rotor dragOne way internal fluid circuit makes bleeding easyMineral oil brake fluid is non-corrosive and less hazardous than conventional hydraulic brake fluidShim-less mounting bracket allows for quick installation and setting upFor use with resin padsComes complete with B01S resin compound padsInline hose routing for low profile design
Deore M6120 fully bled hydraulic disc brake with easily adaptable post-style calliper. Fully bled lever and calliper comes without adapters or rotors giving you the freedom to customise to suite your bike. Can be used with the revolutionary Center Lock rotor system which fits easily to Center Lock compatible hubs; alternatively conventional 6-bolt rotors can be used all in a choice of 160 mm, 180 mm and 203 mmKey Features:Opposed 4-piston design reduces leading effect and optimal pad wear increases braking control,Two piece calliper design is both ridged and durable,Hinged clamp design,Ergonomic alloy brake lever for optimum comfort and performance,Mineral oil brake fluid is non-corrosive and less hazardous than conventional hydraulic brake fluid,Shim-less mounting system allows for quick installation and setting up,I-spec-EV compatible,Brake lever features reach adjustment for perfect custom fit,The kit also contains resin pads (can be used with sintered and Ice Tech pads), plus spare olives and insert should you wish to adjust the length of the cuttable hoses,Hose length 1000 mm Front / 1700 mm Rear.
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10-speed TIAGRA provides serious entry-level riding performance with cascaded technology from top-tier lines, more intuitive control for shifting and new 10-speed cable pitch for wider frame compatibility.Key Features:Slim ergonomically designed Tiagra Dual Control Levers for hydraulic disc brakes offer powerful braking and effortless 10-speed shifting,Ergonomic short shift arc follows natural hand movement with inward shift stroke distance reduced for rapid and precise gear changes,Hydraulic brake lever provides powerful, controllable and consistent stopping power with less effort especially from the hood position,Hydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wear,Kit includes ST-4720 STI, BR-4770 flat mount brake calliper with pads, hose, and gear cable (without rotor or adapter),Tuneable reach adjusters,Easy bleed and clean hydraulic system, for use with Shimano mineral oil only.
Deore M6100 fully bled hydraulic disc brake with easily adaptable post-style calliper. Fully bled lever and calliper comes without adapters or rotors giving you the freedom to customise to suite your bike. Can be used with the revolutionary Center Lock rotor system which fits easily to Center Lock compatible hubs; alternatively conventional 6-bolt rotors can be used all in a choice of 160 mm, 180 mm and 203 mm.Key Features:Opposed 2-piston design reduces leading effect and optimal pad wear increases braking control,Two piece calliper design is both ridged and durable,Hinged clamp design,Ergonomic alloy brake lever for optimum comfort and performance,Mineral oil brake fluid is non-corrosive and less hazardous than conventional hydraulic brake fluid,Shim-less mounting system allows for quick installation and setting up,I-spec-II compatible,Brake lever features reach adjustment for perfect custom fit,The kit also contains resin pads (can be used with sintered and Ice Tech pads), plus spare olives and insert should you wish to adjust the length of the cuttable hoses,Hose length 1000 mm Front / 1700 mm Rear.
Key Features:BR-M7100 SLX 2-piston calliper,Post mount.
Top of the range SLR-EV dual symmetric pivot calliper brake with quick linear response, increased rigidity, and improved braking powerEnhanced brake arch proportions give a quicker linear response and increased power,Better clearance with wider tyres, compatible with 28C tyre size,Titanium centre pivot bolt for light weight,Thrust bearings and coated bushings between arms for smooth linear feel and increased durability,Brake pad compound offers excellent stopping power under wet and dry conditions, with improved durability,Spring tension adjuster for precision setup,Adjustable toe-in on the brake shoes for easy setting up.