The Shimano GRX BL-RS717L is a left-only hydraulic brake lever option that is designed to pair perfectly with a right GRX ST-RX715 Di2 Dual Control lever thanks to its matching shape and ergonomics. Skipping all the shifting electronics it's a lighter simpler left brake lever option for times when less is more. The RS717 brake lever is paired with a GRX BR-RX410 flat mount disc brake caliper that brings a new level of control to gravel cycling with enhanced modulation and a quicker initial braking point. And despite its compact construction the system is quieter and easier to maintain.

Brake only left hydraulic lever is designed to pair with a GRX ST-RX715 Di2 right shift/brake lever

Provides a lighter simpler lever option by eliminating the shifting electronics

Lets riders dial in their preferred ergonomics with easy Reach-Adjust

GRX BR-RX410 flat mount 2-piston brake caliper has 10% wider pad clearance to decrease brake noise

Includes L05A-RF pads with finned backplate and resin compound for enhanced heat dissipation

One Way bleeding makes cleaning and bleeding the system easy

Disc brake rotor sold separately

Brake Lever Actuation	Hydraulic
Brake Caliper Type	Flat Mount
Rotor Included	No
Brake Lever Use	Left
Color	Black
Hydraulic Fluid Type	Mineral Oil
Pad Compound	Resin
Hydraulic Hose Length	1000
Adjustable Reach	Yes
Adjustable Contact Point	Yes