Cables don't need charging, and that simplicity appeals to riders who want reliable shifting without battery management or electronic complexity. The Shimano GRX-810 Mechanical 1x 11-Speed Kit packages the core components for a cable-actuated gravel build with hydraulic disc brakes, giving you GRX's gravel-specific ergonomics and durability in a straightforward mechanical system. This is a partial kit that covers shifting, braking, and gearing, so you'll still need a crankset, bottom bracket, and disc rotors to complete the drivetrain.

The right-side lever is an ST-RX810 dual control unit that handles both shifting and rear brake duties. GRX lever hoods are shaped differently than Shimano's road components, with a raised head that prevents your hands from sliding forward when you're pushing hard on rough terrain. The hood and lever surfaces feature textured coatings for grip in wet or dusty conditions, and the recessed finger notch keeps your hands from creeping upward during long descents. Shifting feel matches Ultegra-level smoothness with SIS indexing, and the kit includes the polymer-coated stainless cable, OT-SP41 housing, and the OT-RS900 loop that's specifically required for proper rear derailleur actuation.

The left side gets a BL-RX810 brake-only lever with matching ergonomics and textures. Both brake levers use ServoWave action, which delivers a faster initial bite point followed by a wider modulation zone so you can fine-tune braking force on loose or variable surfaces. Reach adjust and free stroke settings let you dial in lever position and engagement point. The flat mount BR-RX810 calipers use a mineral oil system with IceTech finned pads, and the kit includes SM-BH90-JK-SSR hydraulic hose and fittings for both front and rear.... Read More