Shimano -
The Shimano GRX ST-RX610 dual control lever delivers light and responsive shifting for mixed-terrain riding (Note: BR1057 is a left non-shift variation for 1x set ups) . The textured hood and anti-slip brake lever surface increase control on bumpy terrain. The GRX BR-RX400 2-piston flat mount hydraulic disc brake caliper features a low-profile design with ICE technologies to provide greater control and excellent heat dissapation for mixed terrain riding. 2x shifter with brake lever for use with GRX RX610 12-speed systems Gravel-specific lever body ergonomics and anti-slip lever coating provides greater control on mixed terrain Reach Adjust mechanism allows the lever to be adjusted to suit any hand size, type of riding and individual rider preferences GRX BR-RX400 flat mount 2-piston brake caliper provides excellent heat dissipation with the help of Shimano's ICE technologies Convenient tool access with J-Kit allows for simple set up, maintenance, wheel replacment One Way bleeding makes cleaning and bleeding the system easy Brake Caliper Mount: Flat Mount Hydraulic Hose Length: 1000 Brake Lever Use: Left Hydraulic Fluid Type: Mineral Oil Adjustable Reach: Yes Double or Triple: Double Rotor Included: No Color: Black Pad Compound: Resin Adjustable Contact Point: No Shifter/Derailleur Compatibility: Shimano Front Der/Shifter Compatibility: Shimano Road Brake Lever Actuation: Hydraulic Drivetrain Speeds: 12 Defined Color: Black