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.
Redshift's Quick-Release Carbon Aerobars are different than any other aerobars on the market. The patent-pending quick-release mechanism allows you to attach or remove the aerobars from 31.8mm handlebars in a few seconds, without any tools, allowing you to choose the best setup for every single ride. The quick-release mechanism allows you to attach or remove aerobars in a few seconds, with no tools required to remove or attach the aerobars. The aerobars always attach in the same orientation and have a secondary safety release mechanism prevents accidental release. The Quick-Release Aerobars offer massive adjustability that lets you fine-tune your fit; extension length, armpad fore-aft, armpad width you can adjust them all to get yourself in the perfect position. If you want to get yourself in the perfect aero position on the bike, you need Redshift's Quick-Release Carbon Aerobars! Includes Handlebar Clamps, Quick-Release Mechanisms, Carbon Aerobar Extensions, Armrest, and Armrest Pads.
Featuring a streamlined and simplified design, the stunning Shimano GRX dropper lever minimises stress and distractions, so you can keep your momentum out on the road. Whether you're tackling a challenging downhill descent or exploring new unknown terrain conditions, you'll benefit from its integrated cable pulling system with a 9mm max cable stroke delivering instant stopping performance. Enjoy the freedom of being able to easily raise and lower your dropper based on the terrain conditions with minimal effort from this sleek model. Packed with some of the finest Shimano technologies around such as reach adjustment, you can fine-tune the Shimano GRX dropper compatible lever to feel to suit your hand size, type of riding and individual preferences. Taking braking a step further, its Servo Wave technology makes the initial pad travel fast, so little lever movement is needed to bring the pads into contact with the rotor. This increases your stopping power output rapidly and gives you improved control. Easy to set up and maintain, this brake's caliper delivers excellent heat dissipation for greater multi-surface braking control. Its Ice Tech technology allows you to benefit from its high rigidity with optimised, lightweight construction.
Shimano GRX 810 Dropper Release Disc BrakeReady to thrive in the toughest terrain, the GRX 810 Dropper Release Disc Brake brings you fine speed control and outstanding stopping power in all riding conditions. The perfect addition to your multi terrain gravel bike, Shimano has also added mechanical dropper seatpost control. This means you can easily change your saddle height for a climb or descent without changing your hand position, which is key for staying in control as you’re riding at your limits.Whether you're tackling a challenging downhill descent or exploring new terrain types, you'll benefit from its integrated cable pulling system with an 8.3mm max cable stroke delivering instant saddle height control. Enjoy the freedom of being able to easily raise and lower your dropper based on the terrain conditions with minimal effort from this sleek model.Heat Resistant Disc BrakePacked with some of the finest Shimano technologies around such as reach adjustment, you can fine-tune its feel to suit your hand size, type of riding and individual preferences. Taking braking a step further, its Servo Wave technology makes the initial pad travel fast, so little lever movement is needed to bring the pads into contact with the rotor. This increases your stopping power output rapidly and gives you improved control. Easy to set up and maintain, this disc brake's caliper delivers excellent heat dissipation for greater multi-surface braking control. Its Ice Tech technology allows you to benefit from its high rigidity with an optimised, lightweight construction.Features:Shifter Type: Single lever for adjustable seat postFront or Rear: Front brake with left-hand lever (UK spec)Single or Pair: SingleSpeed: N/A (brake only with dropper post control)Use: Gravel, Road Oil Type: Mineral oilMount: Flat mountReach Adjust: TooledHandlebar Clamp Band Inner Diameter: 23.8-24.2mmAnti-slip ribbed surface texture and brake lever coating Easy and clean bleeding systemSimple wheel replacementIce TechnologiesConvenient tool accessManufacturer's Part Number: ST-RX810-LAWeight: 263gTechnologies:Servo Wave Action: When you pull a Servo Wave brake lever, initial pad travel is fast, so little lever movement is needed to bring the pads into contact with the rotor. The power multiplication factor then increases rapidly at the pad-to-rim contact so more of the lever stroke is used to apply greater braking power with improved controlReach Adjust: Brake lever is equipped with a reach adjust mechanism. The distance from the handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferencesDual Control Lever: Ergonomic innovation is probably more critical to the higher standard performance than the added gearing. The shift internals borrows the robustness from Shimano's MTB technology and are so smooth and effortless that one finger shifts front and rear are possible. Indeed, shifting is the ultimate act of Shimano Total Integration, and simply has to be experienced to be understoodIce Technologies: XTR, SAINT, DEORE XT, SLX, ZEE, DEORE LX calipers are bundled with an Ice Technology piston to achieve optimised lightweight, high rigidity and heat dissipation. Oversized pistons transfer hydraulic power directly to the brake pad, and ceramic material is used to avoid heat transfer for constant stable braking, providing efficient stopping power transfer without lossOne Way Bleeding: One Way Bleeding was developed for quick and easy prevention of air in our hydraulic system. We have streamlined the oil route throughout the system to prevent air bubbles from being captured in the system. One-way oil routing plus a funnel tool with mineral oil provides an easy and clean bleeding systemClick HERE to check out the Shimano Brake Reference Guides.A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.