The Under Stem Mount allows riders to secure a Shimano Di2 Junction Box to their bike quickly and easily without the need for zip ties, duct tape, or other unreliable attachments.
- Lightweight alloy headset spacer with nylon body (9g)
- Compatible only with Shimano Di2 Junction Box
- 95mm length, 44mm width, 6mm height
- 6 Degree angle
|Black / 17°