Make your own.
Long bit of 10mm threaded rod, two bolts and two large washers - get the lot from Hombase/Wickes/B&Q (etc) for a few pounds.
@tynan 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.
Make your own.
Long bit of 10mm threaded rod, two bolts and two large washers - get the lot from Hombase/Wickes/B&Q (etc) for a few pounds.