could be a JIS/ISO incompatibility.
JIS headsets: crown race ID - 27.0mm; cup OD - 30.0mm
ISO headsets: crown race ID - 26.4mm; cup OD - 30.2mm
and these are interference fit, so pressing type force is expected
@rive_gauche 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 be a JIS/ISO incompatibility.
JIS headsets: crown race ID - 27.0mm; cup OD - 30.0mm
ISO headsets: crown race ID - 26.4mm; cup OD - 30.2mm
and these are interference fit, so pressing type force is expected