Improvements
#2
shafts at both ends on the Xplorers. I don't mind the chain on mine even though I have trouble tightening it or should i say can't, it is no fault of Polaris it is my inate unability to do mechanical work. And my chain has never failed me not once. But got to admit dual shafts would be better. That is about all I can dig up.
#3
#4
#5
#7