105 Di2 rear mech
Shimano 105 Di2 RD-R7150 Rear Derailleur
The 105 Di2 rear mech brings semi-wireless 12-speed shifting to a much friendlier price point, with room for cassettes up to 11-36T. It acts as the system hub, with the charging port and status LED built in.
Highlights
Why we rate it
Wide range for climbing
Takes up to an 11-36T cassette, so 105 Di2 bikes can run genuinely low gears for hilly rides.
System hub
Charging port, LED indicator and adjustment button are integrated, keeping the rest of the install tidy.
Wireless to the levers
Receives shift signals wirelessly from the 105 Di2 levers, with only one wire to the battery.
Low-profile build
The compact shape keeps it tucked in and less exposed in a fall.
Tech specs
Specification
Manufacturer specification. Details may change without notice.
Specification
- Model code
- RD-R7150
- Speeds
- 12
- Actuation
- Di2 (semi-wireless, battery-in-frame)
- Max low sprocket
- 36T
- Min low sprocket
- 34T
- Top sprocket
- 11T
- Total capacity
- 41T
- Ports
- 1 x EW-SD300 E-Tube, 1 x charging port
- Chain
- Shimano HG 12-speed
- Weight
- Approx. 302g
- Compatible levers
- ST-R7170 (wireless)
Ordering
Available from The Cycle Collective
Available to order through The Cycle Collective in Dorking. For availability, setup or advice, call 0203 148 6764 or email hello@thecyclecollective.cc.