I didn't think these 4 ply tires were going to cut it...LOL. 24 miles on easy trails and got a stick the size of a fat cigar. I'm thinking this weighs twice what my 4 wheeler weighs, with carries twice as many passengers. Ever since I put 6 ply tires on my Foreman, I haven't had a flat since. I don't suppose anyone carries 10 ply for Pioneer? No joking, I think 6 ply skins will be a must have tire for these, and perhaps a set of fancier rims like toodeep had on the one he set up.