OLN is the width between fork ends that the hubs are spaced to match (110mm, 115mm or 120mm is common for this era of hubs). It's the distance between the cone locking nuts, basically.
@Skülly 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.
OLN is the width between fork ends that the hubs are spaced to match (110mm, 115mm or 120mm is common for this era of hubs). It's the distance between the cone locking nuts, basically.