You are reading a single comment by @negaatio 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.
@negaatio
The geo is quite normal, it just that they are measured bb to top of seat tube, not center of toptube. Doing this adds about 2-3 cm to the actual frame size. My size 57 is actually 55 top tube and 54/55 seat tube in classical bicycle size terms. Just stick to the toptube lenght and you'll be fine. Its sloping geo after all.
tl;dr: size 57 is actually size 55cm/55cm