Quote:
Originally Posted by Taxi645
One of the reasons why the side wall is now higher than originally planned for the 18'' wheels was because the feedback from F1 teams was that the low side wall was going to have a too much of a negative effect on the suspension performance.
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But that's because F1 cars have piddly torsion bar springs and not proper springs. We don't have such issues on WRC cars with their 500mm of coil sprung strut suspension travel, even on 18"tarmac tyres.
Quote:
Originally Posted by Taxi645
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1969 March 15" front tyre:
Looks low profile to me...
So it should be Allison on the
return to low profile tyres, no?
13" was only ever due to the rules. Who says F1 tyre suppliers would not have gone to increasing larger diameter wheels & lower profile tyres than 15" of the late 1960's, if they had been allowed to?
Yes, the constructors used the balloonish 13"tyres as an opportunity to design more compact suspension systems with minimal travel, but who says that was inevitable if tyre development had run its course? That didn't happen in sportscar prototype racing after all -- they went to larger and larger wheels up to 18", while using comparatively long travel suspension systems.