Shimano Shimano Ultegra Di2 RD-R8150 Rear Derailleurs Road bike/components/derailleurs & shifters CBF24-20 Seams at knees to turn

Seams at knees to turn into shorts

49''(W) x 2

Includes: 3 x 16 g cartridges & 1 PU grip

5mm/50mm  Chainline

Whether packing snowballs or waiting for the school bus on frosty mornings

Shimano Shimano Ultegra Di2 RD-R8150 Rear Derailleurs Road bike/components/derailleurs & shifters CBF24-20 Seams at knees to turnThe ULTEGRA RD R8150 12 speed Di2 electronic rear derailleur 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 shifts cassettes from 11 30 to 11 34 bringing new versatility. Compact SHADOW design includes an integrated wireless unit, charger, switch and LED status indicator. Wider range capacity: compatible with 11 30 and 11 34T 12 speed