Shimano GRX ST-RX600 Shift/Brake Lever BR-RX400 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount Caliper BLK Weight-96g HYPR is a full-silica compound

HYPR is a full-silica compound has 16% less rolling resistance with 23% better grip in wet conditions

Unidirectional carbon finish

Compatible with the older (W) wide ratio 5 speed hubs

4L) dimensions 24x5x20cm color black weight 185g

5" 29" 120mm Solo Air

Shimano GRX ST-RX600 Shift/Brake Lever BR-RX400 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount Caliper BLK Weight-96g HYPR is a full-silica compoundGRX ST RX600 Shifter Hydraulic Brake LeverST RX600 Dual Control shift brake levers provide the same light shifting operation as top tier systems Anti slip lever design Reach adjust mechanism allows lever to be adjusted to suit any hand size type of riding and individual rider preferences Brake Lever Actuation Hydraulic Double or Triple Double Rotor Included No Brake Caliper Mount Flat Mount Brake Lever Use Left Rear Der Shifter Compatibility Shimano