Been doing a little reading. It seems that this term is somewhat general and subjective. Those of you who have them.....Is the rubber softer and grips more ? Do you have any Durometer numbers
Another question. Ideally, what diameter wheel would you want ? It looks like 16" would be much better than 15" because of what ISN'T available for tires for them.
There doesn't seem to be any Summer tires available in 16" but plenty for 18" and up..............Bruce