Quote:
Originally Posted by Emilime75
Correct. Tire widths are in metric and go in 10mm increments. A 285 is 10mm wider than a 275, divide that in half and you get a 5 mm increase on the inside, and a 5mm increase on the outside. So, in theory, going from a 275 to a 285, and adding a 5mm spacer, will push the tire out a total of 10mm while keeping the inner edge the same as with the 275 and no spacer. Again, this is theoretical as not all tire brands and models are the same. Some run narrow, some wide...some have rolled shoulders, some have more squared shoulders...
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Right. These Goodyear’s I have on right now seem extra wide for a 275. I really think if I roll my fenders just a little more I’ll be good to go with a 285.