Optimized for impact survivability, the 12-speed mid-cage M9250 rear derailleur
is the choice for both Shimano’s top enduro athletes and weight-conscious XC
racers alike, especially when matched with the 9-45 compact cassette. Featuring
all-new wireless Di2 shifting, automatic impact recovery, a redesigned wedge
shape and 23 millimeters of additional ground clearance for a bash-free ride,
this rear derailleur stands out for the speed of its shift and its ability to keep
riders competitive on the trail.

Robust Design
A wide link structure, skid-plate design, durable carbon plate and solid
pulley add robustness and longevity.
RD Protection Function
A new automatic impact recovery function instantly returns the derailleur
motor to its original position after impact.
SHIMANO SHADOW ES
A slimmer, stronger evolution of Shimano’s pioneering chain-stabilizing
Shadow concept
Precise & Clean Wireless Shifting
Wireless Di2 paired with HYPERGLIDE+ technology result in smooth, precise
and instantaneous shifts.
Wedge Shape
The new wedge shape of Shimano’s most survivable rear derailleur to-date
avoids more direct impacts,and smoothly glances off rocks if there is a hit.
Protected Battery
Tucked safely inside an enclosed space, the battery won’t budge even in
rough terrain, while remaining completely removable for charging.

Battery not included