I have a pair of nearly new 9R20's on my Superior that im looking to upgrade to 11R22.5's. they are steer tires and not snow / drive tires though..
to me, if you are replacing all 4 drives or even all 6 tires, its worth it to find some good used rims and upgrade to 22.5;s.. you ditch the Tubes/ flaps, and retainer / split rims and now would be on industry standard sizes where you can find tires a plenty
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