i've read all of sheldon brown but my maths is terrible.
You don't need to be good at maths to use the gear calculator.... the whole point is it calculates it for you! :)
@Re-cycled 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.
You don't need to be good at maths to use the gear calculator.... the whole point is it calculates it for you! :)