had no issues yet with my phazer,2500km and everything looks good,to me the ice build up is not an issue,it wont keep you from riding,no sled is perfect from the factory,you have to work around that,why do you think there is so many aftermarket and mod shops,to fix what the factory missed out onRX-1 CR said:WE'LL YOU MUST HAVE GOT A GOOD ONE . THE PHAZER KEEPS OVER HEATING ,ENGINE BOLTS FALLING OUT, AND HAVE SHOCK PROBLEMS, BAD VALVEN IN THE REAR SHOCKS , ICE BUILT UP THE RUNNER BOARDS. BUT MAYBE THERE IS JUST ONE BAD ONE. NOT LIKELY !!