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21” Wheels?

Prodigal

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I swear I saw a thread somewhere with a great looking car running 21” wheels. It may have been on a GT500. For the life of me I can’t find it now and the search with “21” brings up every thread with a year model 21 in it. Anyone see it or have 21” wheels? What aspect ratio would you need to maintain close to factory overall height do as to not lose the advantage of the M1 3.73 rear gear ratio?
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tosha

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According to tire size calculator, 275/40/19 is same overall diameter as 285/30/21. Without knowing what wheels you have now and what width you want in 21, it's impossible to advise anything further. But, you can open it and play with differnt size matches yourself: https://tiresize.com/calculator/.

Imo, even 20 look too big in a lot of cases, I wouldn't go with 21 wheels but it's just me.
 
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Prodigal

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Prodigal

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21's on my 21' 500. Still on them. And yes I do have my previous two piece 307s for sale. I went back to the 107s from Signature.

PXL_20220903_152959006.PORTRAIT.jpg
Wow! Gorgeous. What are the wheel specs and tire specs. Lowered? Appears so, very small gap. Looks amazing!
 

MACHtobers Very Own

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21's on my 21' 500. Still on them. And yes I do have my previous two piece 307s for sale. I went back to the 107s from Signature.

PXL_20220903_152959006.PORTRAIT.jpg
Beautiful! I have been eyeballing this rim for the mach for a year.

I am curious of a rear/front staggered fit like 911/corvettes do like

21 in rear 20 up front.

20 rear 19 up front

Cannot find anybody with a s550 who has done it. )=
 

Jbenne517

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Beautiful! I have been eyeballing this rim for the mach for a year.

I am curious of a rear/front staggered fit like 911/corvettes do like

21 in rear 20 up front.

20 rear 19 up front

Cannot find anybody with a s550 who has done it. )=
Honestly I have no idea or have seen anyone that is running staggered 20/21 set up. I've seen a few of the drag pack cars with different sizes front/rear. I am at 21" on all four corners on this car. Had the same wheels on my 350 in a different color in 20s and were awesome. Best person to ask is Terrance (50 Deep) with Signature Wheels. Best of luck with your decision.
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