Care to give us some more clues to work with?
For example- do you have a frame that you are trying to work out the correct wheel diameter for?
Or a set of wheels that you do not know the dimensions of?
Or both?
Do the wheels have tyres on them currently?
@Dammit 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.
Care to give us some more clues to work with?
For example- do you have a frame that you are trying to work out the correct wheel diameter for?
Or a set of wheels that you do not know the dimensions of?
Or both?
Do the wheels have tyres on them currently?