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Just out of curiosity, how do they compare to the super-lightweight (which look almost the same)?
 

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last pic has different plate on it then the" NO NO" plate..looks like FL plate. Were these installed in FL..they look amazing and I am interested in learning more.. Pls feel free to PM..
 

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why not go 20" up front too?;)
I do wonder, for a car as aero-optimized as the 12C, if it is critical to mind any changes to the angle of attack. i.e. not only the car's upper surfaces (including Air Brake), but the flat undertray and rear diffuser are meeting the oncoming airflow at specific angles to work properly. Increasing the front wheel diameter would, in theory, alter the stance, unless the car was lowered in front only to retain the default rake, front to rear, no? Certainly, the center of pressure movement fore/aft has also been finely tuned under braking, etc., and things might get unstable if more air is getting under the front than what was anticipated?
 

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I do wonder, for a car as aero-optimized as the 12C, if it is critical to mind any changes to the angle of attack. i.e. not only the car's upper surfaces (including Air Brake), but the flat undertray and rear diffuser are meeting the oncoming airflow at specific angles to work properly. Increasing the front wheel diameter would, in theory, alter the stance, unless the car was lowered in front only to retain the default rake, front to rear, no? Certainly, the center of pressure movement fore/aft has also been finely tuned under braking, etc., and things might get unstable if more air is getting under the front than what was anticipated?
I think with 20 up front and a little lowering via coils, overall stance would not change much to make a difference in air flow. Correct me if I am wrong here wheelb ;) Would look pretty nice with 20 to fill it out better up front...
 

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Those wheels look so much better than the super lightweight wheels! They are way more interesting to look at.
 

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Discussion Starter #13
I think with 20 up front and a little lowering via coils, overall stance would not change much to make a difference in air flow. Correct me if I am wrong here wheelb ;) Would look pretty nice with 20 to fill it out better up front...

actually a 20" front with a 235/30/20 would really be no different that a 19" with 235/35/19 its exact math and same all the way around only difference is your tire is lower profile but same height and width and all car would never know the difference . Only reason i went with 19" there are no matching front and rear combos for good performance available . if you go Pirelli they only make p-zero Nero its all season and Michelin doesn't make the size . All other brands i would put on my mp4 .. i am building my new set 19x9 20x12.5 and i will run Toyo R888 on the set
 

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actually a 20" front with a 235/30/20 would really be no different that a 19" with 235/35/19 its exact math and same all the way around only difference is your tire is lower profile but same height and width and all car would never know the difference . Only reason i went with 19" there are no matching front and rear combos for good performance available . if you go Pirelli they only make p-zero Nero its all season and Michelin doesn't make the size . All other brands i would put on my mp4 .. i am building my new set 19x9 20x12.5 and i will run Toyo R888 on the set
That would look great with 19x9 as I know there is still more room on the fender wells.
 

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We've a client installing spacers behind the factory Superlightweights; 20mm rear, 15mm front. If he's cool with it, I'll post pics.

Curious as to how you lowered your car, wheelb, and if you had any difficulties or challenges?
 

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We've a client installing spacers behind the factory Superlightweights; 20mm rear, 15mm front. If he's cool with it, I'll post pics.

Curious as to how you lowered your car, wheelb, and if you had any difficulties or challenges?
20mm and 15mm seems a lot. Would be interesting to see how much they stick out...
 

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Discussion Starter #17
We've a client installing spacers behind the factory Superlightweights; 20mm rear, 15mm front. If he's cool with it, I'll post pics.

Curious as to how you lowered your car, wheelb, and if you had any difficulties or challenges?

Those specs are perfect i order my new wheels exactly with that much more back pad on them ! with that front new offset i was able to concave the front wheels also ! cant wait for new wheels

lowering is easy it has perches simply compress springs and change the perch settings .
 

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Those specs are perfect i order my new wheels exactly with that much more back pad on them ! with that front new offset i was able to concave the front wheels also ! cant wait for new wheels

lowering is easy it has perches simply compress springs and change the perch settings .
I checked out my original wheel and the offset was like 47 for the stock... if he had 20 and a 15, he would have a 27 offset... and 32 in the back... thats really out there offset... not sure if tires would rub on that...
 

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The fronts, at 15mm, look like the push the tires a bit too far out of the wheel wells. The owner has 10mms on the way, but put these on in the interim. The 20mm on the rear looks very good, to my eye.
 
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