You are reading a single comment by @danb and its replies.
Click here to read the full conversation.
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.
@danb
Is there a dilution calculator?
i.e. to work out what my % would be if I don't take the pre-emption option?