Shimano GRX ST-RX400 Hydraulic Brake/Shift Lever - Left 2x10-Speed Black Model=Brake Housing Made from 304 Stainless Steel

Made from 304 Stainless Steel Ring Position/Type Single Tooth Count 44 Drivetrain Speeds Single Speed 3/32" Chainring BCD 110 Color Silver Defined Color Silver Teeth 44T Width 110Mm

Pressure Relief Valve upgrade kits available separately

butyl strips

Double standardized bolt circle diameter allows for use of standard mid-compact and compact chainrings

Shimano GRX ST-RX400 Hydraulic Brake/Shift Lever - Left 2x10-Speed Black Model=Brake Housing Made from 304 Stainless SteelGRX 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