I just ordered my rims and tires for my 300c awd. I ordered 22'inch rims with a 40mm offset, bolt pattern of 5x115 and a 8.5 width. my question is, when I asked my wheel shop what size tire I needed they said a 255/35/22. I thought I was suppost to get a 265/35/22, but I'm no wheel expert, just wondering what some of you wheel experts think.
sounds like they ordered you the wrong wheels. +40 offset sounds like wheels for a front wheel drive car. that would explain them giving you 255/35R22 instead of 265/35r22 . the offset for our cars were between 15 an 22 when ordering rims I thought? someone want to help clarify? I, myself, am running 255's on the stock C 18s.
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in metric measurements of tires heres how it goes
this means- width of tread/sidewall is this percentage of the width of the tread/diameter.
The first number (265) is the measurement (in MM) of the tread width
the second number (35) is the % the sidewall is as compared to the tread.
the third number is obviously the diameter.
so a 265/35/22 would be slightly wider and have a little taller sidewall than a 255/35/22. but if you put too wide of a tire on too thin of a rim, the tires will balloon out and not look or perform too well b/c they will roll when cornering.
but 255 is a better fit for the 8.5s. but I would check to make sure they ordered you the right rims, sounds like they ordered you the "skinnys" which are used for cars which aren't supposed to be able to fit 22s. I know someone with an 07 altima on 22s which was possible because he bought the skinny 22s.
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