attach a PC or an wall mount AC adaptor to an SM-BCR2 battery charger. This is a factory replacement part to replace a missing or damaged cable.

front. 28.6mm Clamp.

rim brakes are the tried-and-true option. The Dura-Ace Di2 ST-R9250 Shift/Brake Levers provide Shimano's 12-speed electronic shifting to riders who want to stick with the simplicity and low weight of mechanical brakes. ...

a display, charging port, and wireless communication connector for E-TUBE-compatible DI2 systems.

rim brakes are the tried-and-true option. The Ultegra Di2 ST-R8150 Shift/Brake Levers provide Shimano's 12-speed electronic shifting to riders who want to stick with the simplicity and low weight of mechanical brakes. ...