Went from stock to 24" bear claws and was plowing with my kfx. Made a huge difference over stock. Waiting to go riding now since i upped to the 25" bearclaw (its another 1-1/2" wider and have a taller tread then the 24's). I think i'll be surprising some 4x4's this year. I did have to do a little trimming to fit the 25's
You need to trim some of the tubbing behind your heel guards. The tire rubs a little at high speeds so i trimmed to make sure i wasnt rubbing at all. from the 24's to the 25's it goes to almost a mud type tire. Just did my first (snow) ride last night and loved them. Here is a pic between the 24's and the 25's. I dont know if the pic shows the difference but look at the side knobbies. the 25's are 1.5" wider and they seem to be flatter.
4-snows and zippers are by far the best tire you can use in the snow, on a packed down trail I find they hook up enough to push the front end. They really expand when you spin which helps in the snow. They are surprisingly durable as well, I got 3 winters out of my last set and that was with quite a bit of pavement running.
Well looking cause a club i belong to does a winter ride every year and everyone rides a 4x4 so last year i had some issues with the stock tires. So just trying to figure out if i should goto a 25 of the maxxis 4 snow of zippers. Alot of the riding is on snowmobile trails that are open to atvs. There are alot of deep snow access trail where last year all i did was get hung up. So how do the zippers work in fresh powder and deeper snow.
From my limited experience, deep snow is going to be a problem no matter what tire you're running, if the snow is deeper than your ground clearance. That's why snowmobiles have a wide track, and skis, so it floats on top with maximum traction.