The Shimano GRX ST-RX400 10-speed hydraulic disc/brake lever provides greater control on mixed terrain.Gravel 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. BR-RX400 disc caliper features Shimano ICE Technology for excellent heat dissipation. Convenient tool access and One Way Bleed system mean set up and maintenance are simple. Item Specifications: Brake Lever Use, Left, Brake Caliper Mount, Flat Mount, Color, Black, Defined Color, Black, Front Der/Shifter Compatibility, Shimano Road, Drivetrain Speeds, 10, Rear Der/Shifter Compatibility, Shimano Road, Adjustable Reach, Yes, Adjustable Contact.
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