In my opinion, Simmon's Ski's are a must on any sled. I have been riding sleds for far longer then I'd like to admit, nothing fancy just a plain old mountian rider, and I have had Simmons on all types of machines. The improvent gained, from powder riding, to trail riding is immeasurable. I'd would reccomend a pair to anybody on any machine. One of the single best investments a guy can add to his sled. I posted a request for cheap Simmon's Ski's a while back and ended up finding Throttleinc to be the cheapest at $380.00 delivered with 4" cutting carbides. Best money spent hands down.