tire sizes make no sense
#1
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Join Date: Nov 2002
Location: Belleville, NJ
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tire sizes make no sense
If our stock tires are really 245-45 not 225-50's than why aren't they labeled that way. If it wasn't for this website I know I wouldn't have known this and every shop or mechanic I've talked to about my car hasn't known it either. Why not label the tires for what they actually are...
#2
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Why is there poor consistency with clothing and shoe sizing? Why do bottles and cans have false bottoms giving the impression of more product? Why are most item marked down 5-10% when the store advertises "Up to 90% off"?
You're correct, it makes no sense to have such poor consistency.
You're correct, it makes no sense to have such poor consistency.
#3
I think technically, our rear OEM SO2s are 225/50's. Sizing is based on the "cross sectional" measurement and you will find that this is correct. It's just that they made the tread contact patch width wider than a normal 225 tire. It's closer to 245 but to get a 245 tread and keep the relative same overall diameter, you have to go 45 aspect ratio to keep the speedo more or less correct.
#5
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Join Date: Apr 2002
Location: Panama City Beach, FL
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I was just checking on the Cooper Tire site. It mentioned an alternate size for the S-2000 rears (245/50) but said it required a different/modified rim than the stocks. Any truth to this, or will 245s work on the stock rims?
#6
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245 width tires are a marginal fit on the stock 7.5" rims, but it will work. I'd be more concerned about the aspect ratio - the 245/50/16 size will have a larger diameter than stock. What you want in non-OEM rear size is a 245/45/16.
#7
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Thanks. I never gave a hoot about tire sizes, and just replaced my passenger vehicle tires with the same size tires as I was replacing. This is all sort of a mystry. Local tire store employees don't seem to have a great deal of knowledge about such alternatives as I'm reading here. This forum is a great wealth of information and experience. I appreciate every one's contributions.
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