Shimano GRX ST-RX815 DI2 Hydraulic Disc Brakeset Front Orange Seal Allows the use of a

Allows the use of a 24mm spindle X-Type or EXI crankset in a 68/73mm BSA threaded bottom bracket shell

Dual tire size

post office and grocery store

13t upper and 15t lower pulleys

Securely holds FR-1 through FR-8 plus the BBT-5

Shimano GRX ST-RX815 DI2 Hydraulic Disc Brakeset Front Orange Seal Allows the use of aDesigned for riding on rough roads, through gravel and mud, to be able to carry on in comfort, stress free, to wherever you want, to allow you to achieve that unique sense of accomplishment. The first groupset designed for Gravel riding Explore beyond Raised hood head prevents hand misalignment and slippage Recessed finger notch prevents upward slipping Anti slip texture and brake lever coating Improved braking input performance Higher brake lever