Shimano GRX ST-RX400 Hydraulic Brake/Shift Lever - Left 2x10-Speed Black ModelNumber=K6477 Eight high-powered LED emitters offer

Eight high-powered LED emitters offer top visibility and seven output modes including a daytime flash mode (up to 30 lumens) and our Wide-Angle Optics for up to 270-degree of visibility

2 Defined Color Black ISO Width (mm) 42 ISO Diameter 622 / Road / 29" Tire Intended Use Gravel Tire Diameter 700c Tire Bead Folding Labeled Size 700 x 42 Tire Type Tubeless Ready Clincher PSI 70

Bar Clamp Diameter (mm) 22

Brake Lever Actuation Short Pull Color Silver Pad Type Cartridge Brake Reach (mm) 39-54 Weight 165 Brake Position Rear Brake Mount Type Short Reach Caliper (39mm - 49mm) Defined Color Silver

Less fatigue on long tours

Shimano GRX ST-RX400 Hydraulic Brake/Shift Lever - Left 2x10-Speed Black ModelNumber=K6477 Eight high-powered LED emitters offerShimano GRX ST RX400 Hydraulic Brake Shift Lever Left 2x10 Speed Black. 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