You could weld one. :P
I'd cut the seat tube from an old Moser lo=pro and use that.
@Black_Rainbow_Project 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 cut the seat tube from an old Moser lo=pro and use that.