Quote:
Originally Posted by herr_oberst
What do they provide? Serious question.
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Tires don't follow the classic laws of surface friction.
Here is a start from Wiki..
Tire load sensitivity describes the behaviour of tires under load. Conventional pneumatic tires do not behave as classical friction theory would suggest. The load sensitivity of most real tires in their typical operating range is such that the coefficient of friction decreases as the vertical load, Fz, increases. The maximum lateral force that can be developed does increase as the vertical load increases, but at a diminishing rate.