You are reading a single comment by @hippy 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.
hippy
pifko
I think it's a Powertap Pro, like this:
which I can only assume uses the size same bearings...