Shimano Ultegra RD-R8150 Di2 12-Speed Rear Derailleur Stoves efficiently resisting the cold from

efficiently resisting the cold from the ground

Helmet compatible hood

Midsole drop:- 6mm

Unrivaled Packability: Lightweight materials and precise design allow for a smaller packed size than ever before

(If you lose your Adapter Pads or your Extender

Shimano Ultegra RD-R8150 Di2 12-Speed Rear Derailleur Stoves efficiently resisting the cold fromXTR Rear Derailleur Medium Cage SHIMANO SHADOW RD+ 12 speed The XTR M9100 series of derailleurs brings a new level of drivetrain silence thank to decreased tension in the low gear position and an added bumper on the pulley cage. Larger 13T pulleys increase efficiency and chain management while compatibility with SHIMANO's new 12 speed cassettes boosts range. FEATURES Enhance shifting performance Optimized for new drive system Silent drivetrain