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good offset for aftermarket wheels

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Old Jun 3, 2025 | 01:02 PM
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Default good offset for aftermarket wheels

im trying to figure out what would be a good offset for a new set of 18/19 wheels, im getting a set of krnc forged wheels made for me and I am having trouble figuring out the offset. I plan on lowering the car an inch or 2 from stock. I currently have stock thin spokes and im looking to go to
18x9.5 275/35/18
19x10.5 305/30/19

i just need help figuring out the offsets I should ask for to achieve good fitment
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Old Jun 3, 2025 | 03:42 PM
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Those wheel widths match C5 Z06, and the tire sizes are only 10mm wider (means they stick out 5mm more than C5 Z06 stock tires)/
I'd aim for C5 Z06 offsets: et54 front, et58 rear.
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Old Jun 3, 2025 | 04:50 PM
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https://www.corvetteforum.com/forums...post1608838459
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Old Jun 4, 2025 | 07:32 AM
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go check between what you have now and what you want and "size" them out to see the difference. I went with +56 on both F/R in my 19/18 set up (same tire sizes as you have listed) and the fit is perfect. Flush to the edge of the wheel welI. use a C7 OE rim replica.

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