Shimano GRX ST-RX825 Di2 Shifter and BR-RX820 Caliper 12 Speed Size:Left Shifter / Rear Brake Outstanding stiffness to weight ratio

Outstanding stiffness to weight ratio in the field of high profile wheels

You won't be able to fit anything else - trust us

We use ISM rim machining

stamped steel cogs held together with 123 high-

combined with the classic power data

Shimano GRX ST-RX825 Di2 Shifter and BR-RX820 Caliper 12 Speed Size:Left Shifter / Rear Brake Outstanding stiffness to weight ratioThe Shimano GRX ST RX825 Di2 Shifter and BR RX820 Caliper (12 Speed) pairs wireless Di2 shifting with a dedicated hydraulic flat mount caliper, built for gravel, cyclocross and touring riders who need reliable stopping power and precise gear changes on mixed terrain. Specifications Series: GRX Di2 RX825 Application: Gravel, Cyclocross, City & Touring Gearing: 2x, 12 speed Shifting System: wireless Type: hydraulic Actuation: mineral oil Hose: SM BH90