Shimano GRX BR-RX810 Disc Flat Mount Front Brake Caliper

Shimano GRX BR-RX810 Hydraulic Disc Flat Mount Caliper – Front The Shimano GRX BR-RX810 Hydraulic Disc Front Brake Caliper offers improved control off-road and over mixed terrain. The caliper is easy to set up and maintain; with the flat-mount design being light and compact. Mud will clear fast and when you’re braking heavily the heat dissipates quickly so there’s no loss of power and consistent performance through your ride; no matter the surface or conditions. An adapter is included so you can use this caliper with 140mm or 160mm rotors.