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. ...
Record 12-Speed controls are aesthetically pleasing and functional. ...
The unidirectional carbon design offers riders two different lever-handlebar positions to adapt different size hands, maximizing control. This results in consistent power, stiffness and reliability for when you need it.
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. ...
