Either will work. I did it on conti speed cross which is a 35mm file tread. Other half did it on 28mm marathon supremes with mudguards and didn't have any issues.
@Howard 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.
Either will work. I did it on conti speed cross which is a 35mm file tread. Other half did it on 28mm marathon supremes with mudguards and didn't have any issues.