If you have excel you can try out my Track Gear Calculator.
https://www.dropbox.com/s/ll3sn1vwfhw8clh/Track%20Calculator%20Complete.xlsx
@FixedStar 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.
If you have excel you can try out my Track Gear Calculator.
https://www.dropbox.com/s/ll3sn1vwfhw8clh/Track%20Calculator%20Complete.xlsx