See the above link.
I run 32 front and 34 rear on the road. Reducing the pressure does get more heat into the tyres and quicker but the trade off is that the tread closes up. They said at the school that 1psi reduction reduces the tread by 50% and therefore the water displacement capabilities - MD of Pirelli agreed (he was there).
I never play with the pressures on the road. One other bit of 'bad' info - apparently, once the tyres reach a high temperature, once they cool and then re-heat they need to heat up to beyond the original point before they provide the same level of grip again. This applies even more to 'race' orientated tyres that are designed to be heated to these levels only once - or so I was told, I'm no expert!
18-Jun-2003, 09:12 
Hybrid Mode
