You are reading a single comment by @umop3pisdn 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.
@umop3pisdn
Powertap calibration values: I understand 512 +/- 12 is the acceptable range. Mine is starting to creep below 500 (496 today). Do I need servicing?