Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component worldGRX hydraulic disc brake STI's give you control, modulation and power with minimal effort in all riding conditionsRaised hood head prevents hand misalignment and slippageAnti-slip texture and brake lever coating gives higher braking efficiency and reduces fatigue on long ridesLeft hand 2-speed leverWeight: 306 g