Wheels-Tires Not Sure How They Will Fit

Ed88

Member
Aug 21, 2017
65
12
18
15x7 20mm Offset
They come in different offsets but I was seeing in that "wheel combos know to fit" thread the concern seems to be back spacing. Honestly I'm not 100% sure how to figure that out as it's not listed in the description of the wheel.
Thanks in advance
Eddie
 
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They're both measurements of the same thing from different reference points. Backspacing isn't dependent on wheel-size (rim to wheel mounting surface distance), so to get to it from offset (centerline to wheel mounting surface) you just need to know the wheel width. Luckily you have all this information.

Use this offset to backspacing conversion chart: http://www.wheelspecialists.com/wheel-specs

A 7" wide wheel with 20mm offset looks like about 4.8" backspacing.