With 20's on it atm (tyres) I can get my little finger between the tyre and the bottom of the forks. I am sure such a technical and precise way of measuring is all you need to know to answer your question.
@chrisbmx116 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.
With 20's on it atm (tyres) I can get my little finger between the tyre and the bottom of the forks.
I am sure such a technical and precise way of measuring is all you need to know to answer your question.