A new level of performance for SHIMANO 12-speed road rear derailleurs Wide 36T-compatible 12-speed Di2 rear derailleur. The SHIMANO 105 rear derailleur receives the wireless shift signal from the shift lever and, with its powerful motor and optimized shifting structure, completes a shift in a fraction of a second. This is the core of the Di2 system, with the charging port, LED indicators, switches, and more integrated into a compact package. The low-profile design reduces damage from contact and drops. Features:

Compact design with integrated wireless unit, charger and switch
LED status indicator
Battery level indicator
To link
Adjustment mode, etc.
Wider gear range
Max. largest sprocket: 36T

Model: RD-R7150
Series: SHIMANO 105 R7100 Di2 Series
Color: Group color
Average weight: 302 grams
Rear gears: 12
Top-Normal suspension type: SHIMANO SHADOW RD
Mounting: Direct mounting (conventional)
Max. difference/front: 16T
Capacity: 41T
Largest sprocket: Max. 36T
Largest cog: Min. 34T
Smallest sprocket: Max. 11T
Smallest cog: Min. 11T
Fluorine coated pivot bushings: 4
Derailleur pulley with 11 teeth
Derailleur pulley with recessed type derailleur pulley screw
Di2 connection wired|Di2 switching: Yes
Di2 wireless connection|Di2 shifting: Yes
Di2 Connection Wireless Bluetooth® LE Custom (*1)|Adjustment Mode Information: Yes
Di2 Wireless Bluetooth® LE Custom (*1)|Di2 Battery Level: Yes
Di2 Connection Wireless Bluetooth® LE Custom (*1)|Gear Position: Yes
Di2 Connection Wireless Bluetooth® LE Custom (*1)|SHIMANO STEPS Data Items (*3): Yes
Di2 Connection Wireless Bluetooth® LE Custom (*1)|E-TUBE RIDE Compatible: Yes
Di2 Connection Wireless Bluetooth® LE Customized (*1)|E-TUBE PROJECT Compatible: Yes
Di2 connection wireless ANT private (*2)|Tuning mode information: Yes
Di2 Wireless ANT Private Connection (*2)|Di2 Battery Level: Yes
Di2 connection wireless ANT private (*2)|Gear position: Yes
Di2 connection wireless ANT private (*2)|SHIMANO STEPS data items (*3): Yes
Firmware update via E-TUBE PROJECT: Yes
SD50 Port (pcs): 0
SD300 Port (pcs): 1
SD50 connector (pcs): 0
SD300 connector (pcs): 0
System status LED: Yes
Charging port (pcs): 1
Charging cable: EW-EC300