Shimano GRX ST-RX400/BR-RX400 Hydraulic Disc Brake Brake/Shift Lever - Left 2x10-Speed Flat Mount Finned Resin Pads BLK 1590g Measure your running efficiency with

Measure your running efficiency with insights like stride length long-term volume and step speed loss showing how much you slow down on impact

Inner Zip pocket to store keys/cash/coins

Feather edge patches result in a smooth seamless tube repair designed to eliminate bulges on high-pressure tires

Features meaty center and side knobs combined with a high-volume casing to create the ultimate aggressive all-mountain/freeride tire

28 long pins (12

Shimano GRX ST-RX400/BR-RX400 Hydraulic Disc Brake Brake/Shift Lever - Left 2x10-Speed Flat Mount Finned Resin Pads BLK 1590g Measure your running efficiency withGRX ST RX400 Brake Shift Lever & Disc BrakeGravel inspired Dual Control shift brake lever and bracket ergonomics Anti slip brake lever Same light shifting operation as top tier systems Tooled reach adjust allows for lever to be adjusted to fit multiple hand sizes and riding preferences Compatible only with FD 4700 and FD RX400 front derailleurs and RD RX400 and RD 4700 rear derailleurs Rotor Included No Color Black Brake Caliper Mount Flat Mount