Do you own a tape measure?
A 700C wheel should be 622mm in diameter, if it's not that then come back to us with the diameter.
It's probably a 27" if it's not a more modern 700C, but that said a friend of mine did end up with some 700B's, so odd things can happen.
@Dammit started
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Do you own a tape measure?
A 700C wheel should be 622mm in diameter, if it's not that then come back to us with the diameter.
It's probably a 27" if it's not a more modern 700C, but that said a friend of mine did end up with some 700B's, so odd things can happen.