Shimano RD-R8150 Ultegra Di2 12Spd Rear Derailleur dirtjumper plus an extra 1L of

plus an extra 1L of cargo space for basic essentials so you can carry on

Superb quality and great look

KOM/QOM chasers

• Easy checking function for current leakage

Our studio rider is wearing a size small

Shimano RD-R8150 Ultegra Di2 12Spd Rear Derailleur dirtjumper plus an extra 1L ofWith Shimano's Fastest, Most Accurate Shifting, The New 12 Speed ULTEGRA R8150 Rear Derailleur Is More Versatile Than Ever Thanks To A Single Cage Length Option That Is Compatible With 28 34T Low SprocketsFeatures: Shimano's fastest ever rear shifting, 58% faster than RD R9150 Compact design includes an integrated wireless unit, charger, and switch LED status indicator Battery indicator Wider range capacity