46 on 17 would be a bit higher, 46 on 18 would be a bit lower ... it's your call :)
@smurfbike 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.
46 on 17 would be a bit higher, 46 on 18 would be a bit lower ... it's your call :)