Shimano RD-R9250 Dura-Ace Di2 12Spd Rear Derailleur xc M Utility Belt (sold separately)

M Utility Belt (sold separately) or carried in a ride pack

300 degree visibility

TRACKR HEART RATE stays powered for the long haul

The tow rope is designed to give a gentle pull

To experience enhanced color and contrast everywhere you go

Shimano RD-R9250 Dura-Ace Di2 12Spd Rear Derailleur xc M Utility Belt (sold separately)The DURA ACE RD R9250 integrates the system charging port and a wireless connectivity unit all while delivering super fast, precise shifting worth of any podium. A single cage length that is compatible with 28 34T low sprockets brings new versatility to the world's best road component group. Fastest ever rear shifting, 58% faster than RD R9150 Compact design includes an integrated wireless unit, charger, and switch LED status indicator Battery