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FRSport »
https://forums.nicoclub.com/frsport-u51641.html
Mon Dec 11, 2006 9:36 pm
smaller sidewall = less flex. however, you also get proportionately less tire tread surface... of course, the differences are negligible for most track racers.
If you are chopping off diameter in the rear, you will be in a higher rpm to go the same speed. This could be a good thing or bad thing depending on how your will be used, if you are concerned about mpgs, where your powerband is & what kind of speeds/rpms the car will see daily/track.
As for tire recommendation:
Federal SS595 . On special too: Federal SS595 Special - and these sidewalls are PLENTY stiff. We run these ourselves @ autox regionally.
If you want a more expensive and stickier tire, we can get you the Federal 595RS. We can also get Falkens, Kumhos, Yokohamas, etc - just give us a call for those since we don't have it up on our site yet.