Wide 36T-compatible 12-speed Di2 rear derailleur. Receiving the wireless shifting signal from the shift lever, the SHIMANO 105 rear derailleur completes a shift in the blink of an eye with its high-performance motor and optimized link structure

Features

• Compact design includes an integrated wireless unit, charger, switch
• This is the hub of the Di2 system, with the charging port, indicator LEDs, adjustment switches and more integrated into a compact package. A low-profile design reduces damage from contact and falls.

Specifications

• Groupset Series- Shimano 105
• Speed- 12 Speed
• Pulley- 41T
• Low Sprocket(Max)- 36T
• Low Sprocket(Min)- 34T
• Construction- Aluminium