Sugru?
Picture of the frame hole:
Similar sized one on the Downtube. Maybe it’s approx the right size for a di2 grommet?
Frame is di2 only. Which is fun, because of internal di2 routing, but external brake cable.
1 Attachment
@Acliff started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Sugru?