47x18
69 gear inches (on 28mm tyres).
John Allis told me “69 or your doing it wrong”. He coached the Harvard team from the back of a fixed gear. https://en.m.wikipedia.org/wiki/John_Allis
“69 or your doing it wrong”
It's one of those things which seems like a good idea in theory, but turns out to be neither one thing nor the other when you get down to it.
@gbj_tester 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.
69 gear inches (on 28mm tyres).
John Allis told me “69 or your doing it wrong”. He coached the Harvard team from the back of a fixed gear. https://en.m.wikipedia.org/wiki/John_Allis