Since there are several guys on here that are motorcycle savvy,I thought this would be a good place to get some info.After being motorcycle-less for 45 years,I recently bought a 6,000 mile 1980 Honda that still has the original front tire on it.It's a Dunlop 3.50 S 18 Gold seal F-11.Anyone here know how to convert that to the present day size system?

Thanks in advance!!!!!!!

 

Paul,

Boonville,MO