henry wrote: ↑
Sat Nov 02, 2019 12:01 pm
A further advantage of the wobbly broad sidewalks is that they allow the tyre contact patch to be larger and to conform more to irregularities in the track.
I hear this theory sometimes, but may I ask for data, articles or studies to back up the idea that a high profile tyre provides a bigger contact patch for a given tyre width & pressure and therefore more traction and/or lateral grip?
These are the rear tyres used by the sportscars made by the F1 competitors:
- Ferrari 488: 305/30 ZR20 (20" diameter radial, 305mm wide, 30% profile, Z speed rating)
- McLaren 720S: 305/30 R20
- Mercedes AMG GT R: 325/30 R20
- Honda NSX: 305/30 R20
Surely knowledgable F1 manufacturers like McLaren, Ferrari, Mercedes, and Honda wouldn't specify a very low 30% profile rear tyre if
a higher profile rear tyre would provide more traction for their over powerful sportscars!?
Bare in mind, that F1 uses radial tyres since the 1980's, where the belts are only under the tread surface, and not crossply tyres where the belts go around the sidewalls.