^ Sheldon says cogs are standard thread. Lockrings can differ:
English/ISO 1.29" x 24 TPI
Campagnolo/Phil Wood 1.32" x 24 TPI
Old French 33 mm x 1.0 mm
@rw101 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.
^ Sheldon says cogs are standard thread. Lockrings can differ:
English/ISO 1.29" x 24 TPI
Old French 33 mm x 1.0 mm