Hydraulic Disc Sub Brake Lever

Features
Quickly brake when riding upright
More confident and accessible braking from multiple positions
Less fatigue on long tours

Specifications
Series: Shimano GRX 11-speed
Lever Size: 1 finger
Oil: Shimano Mineral oil
Tooled Reach Adjust: yes
Recommended Brake Caliper: BR-RX810

Mfr Claimed Weight
TBC