I have a set of big horns on stock rims with a spare front and rear rim with tires already on my 2011 rzr4. Big horns are working great, BUT, I also have 4ITP 14"x (either 8 or 9" wide) rims as well that were given to me. I am thinking about slapping 4 heavy duty mud tires on those for deep snow, deep mud, etc. What is the most economic way to go and what size should I go for? All 4 same size or? Stockers on the rzr 4 are 26's and they seem to work fine. I have a 2 " lift on it as well as fox shocks and EPS heavy duty clutch kit. Where I four wheel mostly is mud/dirt and serious mud after a good rain. Not puddles, more woods, nasty trails, downed trees, creeks, etc. Like I said the big horns work well, but want something more serious for the occassional mud extravaganza 
Thoughts?
Thoughts?