Yes it is studded
Yes it is studded
your going to want 6" of more. If you want to go all out, you can get duallies, but for a sled that old i'd just put 6" single carbides, preferably woody's imo.
go with Bergstrom's, IMHO better wearing, no issue of the carbide coming out of the skeg, just can be more difficult to get during the season.
I'll say, I have 1 set with over 19,000 miles (yes, 19 with 3 zeros, on the 3rd sled) and another w/ 4600 miles (just broke in)