WM are good at showing which side the hanger mounts tbh. If you are filling a flat you have to make 100% sure it’s parallel to stop poor shifting.
Not really - it doesn't have to be filed absolutely perfectly; you just have to do what you'd do whenever you fit a new hanger, and check its alignment.
@Kimmo 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.
WM are good at showing which side the hanger mounts tbh. If you are filling a flat you have to make 100% sure it’s parallel to stop poor shifting.