Could you not add instead a thick spacer that would be itself filed to accomodate the bearing race instead of filing the bearing race? That would save you filing more important parts =)
@ekynoxe 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.
Could you not add instead a thick spacer that would be itself filed to accomodate the bearing race instead of filing the bearing race? That would save you filing more important parts =)