I'd have thought you'd want something like this?
https://problemsolversbike.com/products/headset/adjustablespacer-_6547
edit - Available at SJS. The locking spacer won't let you add or adjust tension, you'd end up with a sloppy headset without an expanding element.
I have a star nut and bolt for pre load tension. I need something that mimics a stem or am I confused?
@umop3pisdn 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.
I'd have thought you'd want something like this?
https://problemsolversbike.com/products/headset/adjustablespacer-_6547
edit - Available at SJS. The locking spacer won't let you add or adjust tension, you'd end up with a sloppy headset without an expanding element.