NEW Shimano GRX BR-RX820 Hydraulic Disc Brake Caliper - Front, Flat-Mount, W/Bracket for 140/160mm Rotor (Assembled for 160mm) frontder_clamp-28-6mm measured center-to-center at the hoods:

measured center-to-center at the hoods: 40

Front/Rear/Pair: Front

Base: Reinforced Carbon Base

Lightweight hollow carbon arms with UD carbon finish

This lowers the center of gravity and makes it much easier to handle while riding with kids

NEW Shimano GRX BR-RX820 Hydraulic Disc Brake Caliper - Front, Flat-Mount, W/Bracket for 140/160mm Rotor (Assembled for 160mm) frontder_clamp-28-6mm measured center-to-center at the hoods:The Shimano GRX BR RX820 2 piston disc brake caliper brings a high level of control to gravel cycling with enhanced modulation and a quick initial braking point. Despite its smaller construction, the system is exceptionally quiet and easy to maintain. 2 piston caliper features 10% wider pad clearance to decrease brake noise One way maintenance friendly bleeding process for quick and easy prevention of air bubbles in the hydraulic system Includes