• Under Stem Mount - MPROBS04
  • Under Stem Mount - MPROBS04

Under Stem Mount

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 or 17 Degree angle