You are reading a single comment by @Fox 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.
@Fox
I've had a go and got other people to do it, got different measurements. If I get it wrong it's an expensive mistake. So I'd prefer someone who knows what they're doing...