Shimano 105 RD-R7150 - Di2 Rear Derailleur

Shimano 105 Di2 RD-R7150 is a 12‑speed electronic rear derailleur for road bikes. It features Direct Mount compatibility, 41‑tooth total capacity, aluminium construction, and integrates wireless communication, battery status display, and Bluetooth connectivity for precise shifting.

The Shimano 105 Di2 RD‑R7150 rear derailleur is designed for road cycling and supports a 12‑speed drivetrain. It uses a Direct Mount interface and offers a total capacity of 41 teeth, allowing use with cassettes that have a largest sprocket of up to 34‑36 teeth. Both the outer and inner cages are machined from aluminium and incorporate 11‑tooth derailleur pulleys. The unit communicates wirelessly with compatible Shimano shift levers and can establish a Bluetooth link to bike computers or smartphones, with an LED display indicating battery status and shift mode. Power is supplied via the EW‑SD300‑I cable, and the system is recharged using the EW‑EC300 charging cable. It is compatible with Shimano 12‑speed chains (HG 12‑speed) and a range of Shimano 12‑speed cassette models, providing reliable, precise shifting for electronic groupsets.