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Question on Offsets


03012012, 02:22 PM  #1 
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Question on Offsets
Maybe this is a dumb question, but I'd like someone to verify something for me if possible.
So: 1 inch = 25.4 mm Will a 10" wheel with an offset of 20 poke the same as a 9.5" wheel with an offset of 13.65? Here's my logic, the 10" wheel is a half of an inch wider than the 9.5" wheel so theoretically it should stick out .25 inches more than a 9.5" wheel with the same offset. And .25 (1/4) of 25.4mm is 6.5mm. So, 20  6.5 is 13.65. Is this logic true? I know no wheel will ever have that offset, I'm simply asking if my logic is correct.
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03012012, 02:31 PM  #4 
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Your logic is 100% right.
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03012012, 02:31 PM  #5 
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03012012, 02:36 PM  #7  
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03012012, 03:19 PM  #8 
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I have a question, I bought some coilovers, previous owner said he had to run a 5mm spacer on his 189s because the wheel was hitting the suspension. i dont know the offset of 189s, but im guessing somewhere in the 30s, if i use a rim with a lower offset, low 20s, would I still need the spacer?
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03012012, 03:21 PM  #9  
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03012012, 03:24 PM  #10 
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cool, Thanks... i'm pretty sire 189s are in the mid 30s, but I'll confirm. Now I need to find a good stud conversion
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