E-mtb optimized 11-speed di2 rear derailleur with game-changing auto shift with manual override and free shift functionality.

Features
Auto shift with manual override uses an advanced shifting algorithm to continually analyze data from multiple sensors, automatically putting you in the optimal gear without requiring manual input at the shifter.
Free shift allows you to select the optimal gear while coasting into switchbacks or dynamic terrain changes, so you're always ready to charge with better balance and control.
Durable drive quality and enduring shifting performance.

Mfr Claimed Weight
TBC