I have a new XP with a 163 Track and simmons skies. I simply have a new favorite sled. No problems with belt. I was riding it in 3 to 4 feet of powder for about 40 of the 60 mile ride. It got hot once but my 06 sled would have been hot after what we had just done. Just thougth I would let every one know. It is a great sled easy to ride and great power.