It's highly inaccurate over short distances / laps. I wouldn't read too much into it. I've only ever come close to 70mph once, and have no desire to repeat the experience, particularly in NW1.
@BringMeMyFix 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.
It's highly inaccurate over short distances / laps. I wouldn't read too much into it. I've only ever come close to 70mph once, and have no desire to repeat the experience, particularly in NW1.