Just normal long valves should do it, I've got 42mm rims and the long valves work just fine, my current tube alignment problem not withstanding.
@MechaMorgan 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.
Just normal long valves should do it, I've got 42mm rims and the long valves work just fine, my current tube alignment problem not withstanding.