Ok, what about ally, with a bolt on fitting for the mount, a la bar fly?
Can’t you press a small tube in the 3D-print to act as the spacer? 4mm ID 5mm OD or somesuch?
Oh M5 bolts? Either way, tube shouldn’t need to be too thick?
@Tijmen 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.
Ok, what about ally, with a bolt on fitting for the mount, a la bar fly?