dont know about long term, i seem to go through rear tires pretty fast. Traction wise they are awesome. i would highly reccommend them.
My other ride is a CH-47D "chinook" helicopter, with 2 engines pushing 3750 HP each this thing can haul, a few Z's that is. I can fit 2 Z's inside and sling load another 3 outside. To bad the Army will never let me try it.