Being a mechanical engineer myself, I think he explains it very well, at least a whole lot better than most engineers can to "normal folk".
@LeMesjeu started
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.
Being a mechanical engineer myself, I think he explains it very well, at least a whole lot better than most engineers can to "normal folk".