Shimano GRX ST-RX400 Hydraulic Brake/Shift Lever - Right 10-Speed Black Model=High C 29 BMX Bike Features Include:

Features Include:

T47 threaded BB cups for T47 frames and M30 28/30mm spindle diameter Praxis - compatible cranks

Duraluminum alloy outer bolt set with Torx T30 fitting

Nordic - Lacing system    Laces

Shimano GRX ST-RX400 Hydraulic Brake/Shift Lever - Right 10-Speed Black Model=High C 29 BMX Bike Features Include:GRX 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 Hydraulic Fluid Type Mineral Oil