I would like to know if any body has put the 26 inch terracross or big horns on their stock steel wheels, and if so any problems with the motor mount on right rear side.

I put some big horn 27" x 12" x 12" (rear) and 27" x 9" x 12" (front) on my rzr and i had to get wheel spacers for it. The back left would just barely hit the frame, and the back right would hit the motor mount. I went with 2" spacers front and rear. I do rub a little on the front, but not much.

i got 27x12 mudlites on mine with the stock bruiser wheel no problems but i am going to add wheel spacers and high lifter springs for more stability

Bruisers aren't stock steel wheels, otherwise you would have clearance issues too.

i went with itp aluminim rims alot lighter less unsprung weight

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2006 silverado 2500 hd
2006 additude toy hauler
2008 polaris rzr
2006 suzuki ltr450
2005 kawisaki kfx700
2003 suzuki z400
2003 honda ex250

I noticed that nobody actually answered your question. I have the exact question for everyone out there. We are looking to see if anyone has tried to fit 26” tires on 12” STOCK BLACK STEEL WHEELS. I am looking to order 26x9x12 fronts and 26x11x12 rears. This would be a ITP Terra Cross tire full setup on my stock rims. LET ME KNOW IF ANYONE HAS FIRST HAND EXPERIENCE TRYING SOMETHING LIKE THIS! I do not want to install any type of aluminum aftermarket wheel and lose my 50” width.
Thanks

All right, I have 27 x 12 x 12 big horns on the rear and 12 x 9s on the front. I used the stock black rims that comes standard on the rzr. I did have issues with the right side motor mount, and just barely touches the frame on the left side rear. So therefore, you are going to have to have spacers or buy an off set rim. I really like the spacers, it gave me the width I need to strattle ruts. So I used 2" spacers to get my tires out of the way. Now if you have 26's I dont' think you'll have a problem with the front tires rubbing, but if you go with 27's your front tires will barely rub the wheel well when you're turning, even with the spacers. So, I ended up putting a 2" lift on it to keep my fronts from rubbing. The 2" lift really didn't put my axles in a bad angle, so looks like everything wil be perfect. So after spending 400 bones on tires, I ended up spending another 200.00 on spacers and 100.00 on a lift.

i put 27.10. 27.9 swamp lites on stock wheels no reversing just clearanced the right motor mount corner with a cut off tool.