Shimano Electronic Shifting|Derailleurs & Parts|XTR Di2 RD-M9050 Rear Derailleur (Black) (11 Speed) (Medium Cage) (GS) (Shadow Plus) (Electronic)

Shimano’s first mountain bike-specific Di2 rear derailleur is also its most technologically advanced. Introducing Shimano Shadow RD + stabilization to Di2, the RD-M9050 couples unrivaled chain control that aggressive riders have come to love with shift performance that doesn’t degrade over time. Whether cross country or trail riders run a 1x, 2x, or 3x drivetrain, the ultra-narrow profile helps protect the drivetrain in tight trail sections. The refined rear derailleur geometry further improves the performance stability while Shimano Synchronized Shift enables system communication with a front derailleur.

Features:

• Instantaneous shift response to rider input
• Seamless gear changes
• Shimano Synchronized Shift compatible
• System communication with front derailleur
• Advantage in all conditions
• E-tube electric wire transmission guarantees stable performance
• Low profile positions RD safely away from trail obstacles
• 1x, 2x and 3x compatible with GS and SGS cage options

Specifications:
Speed: 11 Speed
Shifter Compatibility: Shimano Di2
Shift Mechanism: Electronic (Wired)
Max. Tooth: 46T (For 1x), 42T (For 2x), 40T (for 3x)
Min. Tooth: 11T
Chain Wrap Capacity: 41T (Di2 limits cross chain to prevent chain from getting loose)
Cage Material: Carbon/Aluminum
Chain Retention: Shadow Plus
Color: Black
Weight: 295g (Long Cage)