I have a set of the XTR's in 27" on my foreman and really like them. I like the fact that they are radials and everyone dosnt have them. Compared to the XL's, I like the pattern better also. I only have 300 miles on them however, so I cant give you wear amounts with alot of miles. I did put about 50 highway miles on them this last weekend, and havnt wore off the little nipples yet. I would buy the XTR's again.