Ritchey Shimano Di2 Accessories - 12 Speed

the power source for Shimano's 11 speed Di2 derailleurs and shifters. Its thin, sleek profile allows the battery to fit in seatposts or frames for a clean look.

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. ...

placed anywhere on your extensions or drop bar without having to worry about proper wire length or internal routing. Pair through your primary shifter, place wherever you want and go ride.

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. ...

brake and shift lever set. With a shift and brake quality that is on par with the top-level Dura-Ace, these Ultegra shift/brake levers vastly outperform their price. The short and light lever ...