^ Agreed. There's no way to press on the top bearing without a star-nut or carbon expander bung.
However! An adjustable spacer can provide pre-load:
@Ndeipi 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.
^ Agreed. There's no way to press on the top bearing without a star-nut or carbon expander bung.
However! An adjustable spacer can provide pre-load: