Dura-Ace 12 Speed 9270 Disc DI2 Groupset

SHIMANO DURA-ACE R9270 12-SPEED Di2 DISC GROUPSET Shimano's Dura-Ace R9270 Di2 Disc Groupset is the pinnacle of the brand's road technology, engineered for speed, smooth operation and sleek aesthetics. In this latest edition, there are several changes, including better ergonomics in the shifters for improved functionality and comfort in all hand positions, increased braking modulation, faster shifting, and, of course, the additional 12th sprocket and the move to a semi-wireless configuration. The brains of the system, the R9250 Rear Derailleur, houses the wireless hardware that communicates…