I just received my new tires, I got 25x8x12 up front and 25x12x12 in the rear.

Would this combo cause driveablilty issues or drivetrain problems? I need to find out before I mount them so I can get different ones for the rear.

My quad came with 25x11x12 on the rear and I didn't think it would make that big of a difference. Now that I have the tires they sure seem a lot bigger. BTW I went with the Mudlite XL's.

Any quick inputs on this, I need to get these tires on.

 

No it won't be a problem. I had the same size tires on my 06 400 auto; only I had 25-10-12 in the front. It drove and handled fine.

 

My biggest concern is having 8's up front and 12's on the rear and the affect on handling on hard pack sufaces. We need to ride dirt roads a lot to get from trail to trail around my area and just wanted to be sure before I mounted them.

 

My 06 650 came with 8 in wide on the front and 11 in wide on the rear;so I don't think 1 in would be a problem.

 

1 inch will not be a issue.

 

The only issue I see is a lot of older trails and bridges are only 48" wide and those tires are gonna put you right at 50" which is the new maximum width.

 

put em on and ENJOY [img]i/expressions/face-icon-small-smile.gif[/img]

 

If your swapping out the stock rims than you don't need to change the rear, if anything you could go with 25x10x12 on the front... Either way the bigger tires are going to slow you down some. If you're keeping the stock rims, I'd be hesitant to mount a tire not designed for that particular rim size.

 

Well I had them mounted and I plowed tonite, I think they are gonna be just fine. I will know for sure once the I check them out on the trails and the mud. They don't look so big compared to my 11's that I had before on the rear. I'll keep you all informed, thanks for the replies