Originally Posted by blacktiger
The K60 has a very stiff carcass and they require a much lower pressure. On dirt try 15psi front, 20psi rear. Sorry I don't know the metric equivalent.
1 psi = 0.7 bar
1 bar = 14 psi
Hence 1.05 bar to 15 psi and 1.41 bar to 20 psi.