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maybe I was wrong on this (archive)

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Posted by more on September 15, 2000 at 15:45:35:

In Reply to: Actually F1 regs require small wheels to make posted by cars slower and limit rotor size. EOM on September 15, 2000 at 07:57:40:

I checked the F1 technical regs and they limit total diameter of wheel/tire and brake rotor but I didn't see anything limiting the size of the wheel itself. But I could have sworn I'd seen someone (like a top F1 designer) answering a question as to why they tires are so high profile by saying it's F1 tradition to have "balloon" tires for the sake of appearance and to limit rotor size. Also, in this month's F1 racing Michelin (who'll be in F1 next season) say they would love for the regs to be changed to allow bigger wheels (obviously suggesting 13" is max. now) so they would be on a more even footing with Bridgestone, who have couple seasons of experience making a tire to current F1 specs.

This months Car and Driver has an article on the Jaguar 830 HP F1 car and the specs say F 12.0 x 13.0 inch R 13.4 x 13.0 inch.

You are right about those factors...I did mention the drag factor. However the 18"s would have 235/40 all around rather than OEM 225/45 and 245/40 which might compensate for the front increase size.

And actually, Indycars have 15 inch wheels- I have one in my living room as a coffee table. Besides, I used to chill and inspect my dad's car in his pit when he was on the CART circuit =)

Jonathan Vitolo

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