Shimano GRX ST-RX610 Hydraulic Disc Brake Lever Left Rear BF Giant Power readings are accurate within

Power readings are accurate within ±1

It attaches with no tools

Together with a Thomson stem

Two-Stage sealing geometry optimized for all Presta valve stems

Powerful biodegradable solvent easily removes grease and grime

Shimano GRX ST-RX610 Hydraulic Disc Brake Lever Left Rear BF Giant Power readings are accurate withinUnmatched comfort and control for mixed terrain riding and racing The SHIMANO GRX DUAL CONTROL LEVER delivers light and responsive shifting for mixed terrain riding. The textured hood and anti slip brake lever surface increase control on bumpy terrain. Features Greater control on mixed terrainGravel specific lever and bracket ergonomicsAnti slip coating on brake lever Mfr Claimed Weight TBC