Shimano GRX Di2 Shifters with Flat Mount Calipers (ST-RX815 + BR-RX810) Size:Front Brake - Right Hand Using the recommended quantities for

Using the recommended quantities for tyre size

and adding a proprietary mix of 4 different Graphene compounds

5mm construction

it is produced directly molded without any surface coating and has an Ultra-Torque steel axle like the Record crankset

Schwalbe standard tube for 26" bicycle tyres ERTO 40 to 62 - 559

Shimano GRX Di2 Shifters with Flat Mount Calipers (ST-RX815 + BR-RX810) Size:Front Brake - Right Hand Using the recommended quantities forThe Shimano GRX Di2 Dual Control Lever delivers light and responsive shifting for mixed terrain riding. The ergonomic shifter design improves comfort, and the textured, anti slip brake lever increases control on bumpy terrain. This Di2 version, the ST RX815 Shifters with BR RX810 Flat Mount Calipers, offers the digital precision of Shimano electronic shifting and synchronized shifting. Specifications Raised hood head prevents hand misalignment and