actually
The knobbly bits are for water dispersion, to stop you aquaplaning. the actual area of rubber contacting the road is irrelevant to grip.
(grand prix cars have big wide tyres to spread the heat created by energy lost to friction, stops them melting. They could get the same grip from a narrow tyre, but the tyres would just vapourise.)
(, Tue 6 Nov 2012, 17:23, Share, Reply)
