Wheel Offset Discussion Thread... How far can we go?

boosted180 · 02-18-2015, 12:14 AM

Someone please help me decide. I'm ordering Forgestar 18x9.5 front and 18x10 rears. Tires will be 255 40 18 F, and 285 35 18 R. -2.25 camber front and -1.75 rear.

What offset do I need for a flush or close to flush fit??

I've read wildly different numbers. Some guys are saying a +30 for the front will be flush and others are flush at +20. By my rough calculations, it should be closer to +20. For the rears, I figure about a +16??

The only problem with the fronts is that the semi-concave only goes to +26. The don't have anything lower than that. So should I go deep concave in the front and super deep for the rear? Or just stick with +26 in the semi-concave and it should be ok for the front and deep for the rear at +16? Or if I go with 18x9 in the fronts, what offset do I need? Something around a +28?

Help me decide!

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02-18-2015, 12:14 AM	#11 (permalink)
boosted180 Base Member Join Date: Jul 2009 Location: long beach Posts: 188 Drives: '09 370z sport 6m Rep Power: 17	Someone please help me decide. I'm ordering Forgestar 18x9.5 front and 18x10 rears. Tires will be 255 40 18 F, and 285 35 18 R. -2.25 camber front and -1.75 rear. What offset do I need for a flush or close to flush fit?? I've read wildly different numbers. Some guys are saying a +30 for the front will be flush and others are flush at +20. By my rough calculations, it should be closer to +20. For the rears, I figure about a +16?? The only problem with the fronts is that the semi-concave only goes to +26. The don't have anything lower than that. So should I go deep concave in the front and super deep for the rear? Or just stick with +26 in the semi-concave and it should be ok for the front and deep for the rear at +16? Or if I go with 18x9 in the fronts, what offset do I need? Something around a +28? Help me decide!