Is a 25mm tyre on a 21mm (internal width) rim actually a bad idea, or is ETRTO full of shit?
It'll be fine. People get way too obsessed with these things.
@Yemble 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.
Is a 25mm tyre on a 21mm (internal width) rim actually a bad idea, or is ETRTO full of shit?