On mine I'm running 28-10-14 maxxis bighorns on 14x7 4+3 offset sti hd3 wheels. We ride every kind of terrain, and mine are doing great.

 

Same size on all four?

On the 900 S I've read guys are running 30's no problems.

 

I am also from north eastern Pa, Schuylkill County area. In my opinion I would upgrade your suspension first before u decide to get larger tires. I upgraded the suspension to Racertech dual rate springs and it made a world of a difference. the stock spring sag I had was horrible, down to 10inch rear and 11inch front ground clearance. installed dual rate springs and after about 100 miles on them still at 13 inch rear 13.5inch front clearance.The ride quality it totally different then the stock junk,I don't have to slow down for some things that I normally would when stock.If I were you I'd invest in springs before adding larger tires because if u do larger tires with the stock suspension I would imaginethe ride is going to be worse. Also note bigger tires equals clutch kit. Just my opinion. TIRES, now I would give the ITP blackwater evolution tires a try. 8ply, tough sidewall, they grip n hook, and look good as well. Pm me for more riding info here in Pa.

 

On the 900 S I've read guys are running 30's no problems.

 

29.5 Terms on 14's... no problems at all

 

I'm running Mongrels all around. 28x10R14 on MSA M20's 3.5/3.5 offset. No issues, but haven't done any testing to see if clutch is needed. I'll clutch at some point, but not now. I'll adjust preload if springs sag a bit, then likely look into springs like RacerTech dual rates.

My machine is 900 4 seater, but same wheel fitment wise.

 

Seems like on the 900 S you can run 30's all day long without any rubbing. Any bigger and your performance will take a beating and then you will still have to clutch it according to your tire size.

I'm running 28's on my 900 Trail , and once I get my lift kit I'll bump up to 30's but I'll have to adjust my clutch kit. I refuse to lose any performance!

 

I run 28-10-14 Roctanes on Method 401 Beadlocks (14x7 5+2 offset) and have been extremely happy

 

I was out with this RZR 900S running 28/10R-14 Rage Thunder Tires and 14x7 4+3 MB 11 wheels. They worked perfect.

 

I want to go with a 14 in wheel, not sure what width and offset I should go with. I want to keep it close to the stock width.
I will stay stock tire width but go to a 29 or 30x14.
My rzr has about 6 inches to spare on my trailer so i don't want to increase its width.

 

We've got options for you that would work, although they're not cheap. Our NXG Series Wheels have a 5" backspace in the NXG2, and a 5.375" backspace in the NXG1, both in the 14x7 size. Our Billet Center Series Wheels are also available with a 5" backspace, along with a ton of custom options for color and style.

 

If you go with a wheel 14x7 5+2 it will be close to stock. it will make you about 1 inch wider per side.

We do not have any wheels in a 5+2 for the RZR currently but we are working on getting some vendors to make some with that back space.

 

Sti makes a 14 beadlock with a 5+2

 

30" STI Outback max on 14s. No rubbing on stock, but I had to add the arms for clearance with the mudflaps, it's that tight on the back. Front was fine.