In effect yeah, except they're too expensive to be used once. Hang on, I'm gonna nip out to check a hardware shop.
EDIT: or this at £12.99 from Slane Cycles:
@StandardPractice 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.
In effect yeah, except they're too expensive to be used once. Hang on, I'm gonna nip out to check a hardware shop.
EDIT: or this at £12.99 from Slane Cycles: