Hello all. can any one tell me what the standard sizes for tyres are on my '92 cb 400 superfour Project Big One. I have been offered various sizes and would like to find out what the standard is before going any further and buying some. Thanks in advance.

110/70-17 front and 140/70-17 rear.

Cheers thank you. Now off to choose some new boots for the bike for spring. Roll on the sunshine.