Shimano RX825-L GRX Brake Lever1 x GRX BL-RX825-L Brake Lever left for Hydraulic Disc BrakeFor your riding freedom: the Gravel GRX BL-RX825-L disc brake lever from ShimanoAdvanced Di2 Button Functions Shifting Versatility Whether utilizing the new BL-RX825
Advanced Di2 Button Functions Shifting Versatility Whether utilizing the new BL-RX825-L brake lever or sticking with a pair of GRX ST-RX825 DUAL CONTROL LEVERS, Shimano 1×12-speed GRX delivers a variety of shifting possibilities thanks to Di2s customizable buttons as well as add-on accessory switches.
Carried over from previous generations, the GRX RX825 DUAL CONTROL LEVERS feature three Di2 buttons two buttons are located on the shift paddles while a third button is found on the inside of the hood. The RX825 levers also allow for accessory shift buttons, which can be placed on the tops, drops, or aero bars for additional shifting options. Each Di2 button mentioned above can be assigned various functions, including shifting the rear derailleur, controlling compatible lights and cycle computers, or it can be used as a remote function button for the rear derailleur. With this last option, riders can make shifting trim adjustments on the fly without taking their hands off the handlebars.
SHIMANO marks its debut in the fully wireless drop bar segment with the new 1×12-speed GRX Di2 gravel-specific components. Leveraging the wireless cockpit introduced with SHIMANOs 2×12 speed road and gravel groups and incorporating the completely wireless technology debuted on the M9200- series XTR rear derailleur, GRX RX827 features a fully wireless drivetrain designed for performance, durability, and versatility. With RX827, the GRX lineup now includes a comprehensive range of mechanical and electronic shifting options in both 1×12 and 2×12-speed configurations, allowing riders to tailor their drivetrains for their unique gravel riding demands.
GRX RX827 is designed to be close to the rider, offering the freedom to choose without being tied down. With no special frame requirements, it can be easily installed on any gravel bike you own. This allows you to upgrade your favorite bike with the latest technology and take it on even more adventures. Centered around the RD-RX827 wireless rear derailleur, GRX 1×12-speed brings unmatched chain management and precise shifting to gravel riders.
The new system is engineered for seamless performance across varied terrains, whether racing, exploring backroads, or embarking on all-day adventures.
The new GRX 1×12-speed drivetrain pairs the RD-RX827 wireless rear derailleur with SHIMANOs existing RX825 Di2 DUAL CONTROL LEVERS, RX820 crankset, brakes, and XT 10-51T cassette. This combination delivers SHIMANOs hallmark Di2 performance in a sleek, robust 1×12-speed package. Riders can choose between 40T or 42T chainrings and pair them with SHIMANOs line of 10-51T MICRO SPLINE cassettes. Similarly, RX827 offers an electronic option for drop bar mountain/adventure bikes that utilize mountain bike crank standards. Whether climbing steep trails or cruising flat stretches, the GRX system adapts to any riding style or terrain.
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