agree X2I put almost 500 miles on mine at king of the hammers. I was in major rock sections, sand, and long wide open areas. I still have the same belt on it and going to be running mint 400 in couple weeks. If you are having belt issues it is probably your riding style that needs to change a little. I have thousand and thousands of miles on arctic cat and never had belt issues. I have guys with me that have and it is there driving style that broke them.
They we running on the levee bout 70mph for bout 20 miles straight, both snorkeled one with black momba tires an the other stock tires. So not sure if they were getting enough air with the snorkels. Anyone else has theirs snorkeled yet? I have bout 80 miles on mine no troubles yet .!!
If you go over to the XP900 Forum, you will find that they were/are smoking belts left & right. They determined it is due to improper riding, improper belt break in & extreme mods.tell your buddies:
"if you take a regular chevrolet or ford pickup, just your standard V8 truck, and put 37" mud tires on it and hold it to the floor, not a cruise around town, hold it to the floor, and see how long the tranny lasts. the loads from trying to pull a large heavy tire, overheats the tranny fluid in a truck, which leads to failure of the tranny. same concept in the ATV and UTVs. you put the machine under a huge load like pulling a set of 29.5" black mambas (which weigh 70lbs each) and then hold your machine to the floor and its going to cook the belt. the clutch was not slipping the belt, you just overheated it. the higher load you put on your machine, whether it be from huge tires, or tons of gear, or full windshields and top, these loads and wind resistance put more strain on your machine, the motor and driveline. since your motor is connected to the transmission by a 35mm wide belt, all the power you make, and all the load you are carrying is being placed directly on that belt. the more load you put on it, the more heat you are creating in the belt. after a full top speed run at one set speed, your belt is sitting in one spot on the circumference of the clutch, creating a hot band in the clutch, which wont allow the belt to cool itself off under such high loads. if the owner varied his speeds every few seconds rather than just holding at one speed, he might have made it thru the day. but the sheer wide eyed wide open throttle happy riding style is going to leave him stranded in the bush more than just this once unless he calms down.
stock tires 26" < black mambas 29.5" which equates to 12% larger and about 240% heavier than stock creates alot of load on the machines belt. long hard top speed pulls generates so much heat in the belt, it fries it. you gotta understand how a belt is built to understand why it blew. there is glue that holds a belt together. once this glue gets to its peak operrating temperature, the glue melts, and the belt comes apart and explodes looking like you ran the belt thru a wood chipper.