SHIMANO introduces the world's first extremely versatile group for gravel riders. The GRX group, provides cyclists with numerous variations and solutions, including single and two-speed drivetrains, mechanical or electronic drivetrains, 10-speed or 11-speed versions, integrated adjustable seatpost support and various gear spans. These features make the GRX perfectly equipped for any gravel trail you can imagine.
Additional hydraulic disc brake lever
The SHIMANO GRX BL-RX812 Built-in Brake Lever allows cyclists to maintain greater control of their bike while riding over varied terrain by using SHIMANO's class-leading hydraulic disc brakes. The additional hydraulic disc brake lever provides reliable and fast braking in more riding positions. It also allows quick access to the lever when riding upright with hands resting on top of the handlebars.
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