I just bought a TRX 350. The stock tires are AT25 X 8 X 12 and AT24 X 10 X 11 and need replaced. Do I need to stay with the 11 tires or can I go with 12 on all 4 tires. ( I am concerned with clearance problems) I am new to owning an ATV. Thanks fb

 

If you are saying that the current front and back are different sizes (25 and 24"), then a previous owner put some tires on it from another quad!!! Front and rear tires have to be the same height, so that's not right. In true stock form, both are 24".

The most important thing is the rim diameter....the last number. You have lots of wiggle room with the other numbers, but none with that last number!