You are reading a single comment by @Tijmen 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.
Tijmen
my polo bike runs 39x22 ratio, with 172.5 crank arms.
I'm getting some shorter cranks, ideally 160, so how should i modify the gearing to account for this?