13-speed Shimano Dura-Ace R9350 Di2: everything we know so far
13-speed Dura-Ace has appeared in the wild. What is it? I'll share everything we know
Shadow Rear Derailleur (13 speed)
RD-R9350
August 2026 is when we first saw a prototype of the 13-speed RD-R9350 rear derailleur.
Not much is known about the derailleur yet.
In the spy shots a wire can be seen. That suggests the rear derailleur uses a central battery for power, like BT-DN300.
Of course, this could just be a ruse, and Shimano might be working on a different method of powering the derailleur - I just don't know.
Specifications
- Model code
- RD-R9350
- Series
- Dura-Ace R9300
- Weight
- ???g
- Number of buttons
- 1 (function button)
- SD300 ports
- 1?
- Max front difference
- ??T
- Total capacity
- ??T
- Low sprocket max
- 34T
- Low sprocket min
- ??T
- Top sprocket max
- ??T
- Top sprocket min
- 11T
- Pulley teeth
- ??
- Wireless connectivity
- Bluetooth / ANT
- Mount
- ??
- Charging port
- Yes
- Charger
- EW-EC???
- RD Type
- Shadow RD
- Clutch
- No
Related components
View all components
Understanding Di2 derailleur specifications
What is a rear derailleur's total capacity, really? Why is there a top sprocket minimum? And what about front derailleurs? Chain line, total capacity, Top gear teeth? This page explains all of those, and more.
Images
More images
