swallow 3.60-18 front tire. converts to about a 100/90-18. this is a NOS tire from a motorcycle shop that has been closed up and the contents sold off. It is new in the sense it has never been on a rim, however it has been on the rack for many unknown years. It is not dry rotted or split. If you are one of those people that thinks a tire goes bad from storage and cares about date codes this is probably not the one for you. If you need something cheap, round, and holds air with good tread this will do the job.