Ask The Editors: Tire Swapping Size Questions
Well, the stock rear tire size on your Bear Tracker were AT22 × 10-10 mounted to steel wheels.
When you break down how ATV tire sizing works, the first number is how many inches the tire stands inflated. Stock was 22″, you would be lowering the stance by 2″ running 20s. This shouldn’t cause you any clearance issues, but it will change the handling characteristics slightly.
The next number in the sequence is the tire’s width. In this case you are swapping 10″ for 10″ so no issue there.
The last number is the diameter of the rim. This is your only potential snag. If you were running the stock 10″ rims, the Duros might not mount right. It sounds like you are looking to buy new rims with the tires, however – in which case, be sure to pick up 9″ wheels if you insist on that tire size mentioned in your question. If you wish to match with stock (which we almost always recommend due to consistent handling) – remember that it’s a 10″ rim.
Lastly 4×110 refers to the bolt pattern – in this case you are right on. That was the OEM spec as well. That number, by the way, means 4 bolts, 110mm apart bolt holes.