You are reading a single comment by @gbj_tester 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.
@gbj_tester
The weakness of the quill system had already been appreciated and a fix attempted by the 1940s at least, with a split clamp at the headset lock nut position to anchor the stem there rather than just at the quill expander, which is necessarily several inches further down leading to the long lever which is the main cause of flex in quill set ups.
The threadless patents date from around 1990