Discover all the original Shimano components for your bike at Escapa. The Shimano Ultegra 12-speed Di2 Rear Derailleur RD-R8150 is the fastest and most precise rear derailleur on the market. The newShimano Ultegra 12-speed Di2 Rear Derailleur RD-R8150 is more versatile than ever thanks to a single cage length option compatible with small 28-34T cassettes.
FEATURES
Our fastest rear derailleur ever, 58% faster than the RD-R9150
The compact design includes an integrated wireless unit, charger, and switch
LED status indicator
Battery indicator
Pairing
Mode of adjustment, etc.
Greater range
Lowest gear: 34T
