Shimano grx st-rx815 11-speed di2 right drop-bar shifter/hydraulic brake

A raised hood head prevents hand misalignment and slippage, while a recessed finger notch prevents upward slipping anti-slip texture and brake lever coating higher brake lever axis and curved lever allow for higher braking efficiency to reduce fatigue on long rides tooled reach adjust allows for lever to be adjusted to fit multiple hand sizes and riding preferences