tyre pressures

[Shifu]

Optimum temperature will vary between brands but generally 70 - 90 deg C. massively important.

Did you see the infared cam used at the Isle of Man last year?. The average tyre temp was running at 130c.

Paul, I think the camera was picking up the heat from the brake rotors as well so the reading was very innacurate.
I use the laser temperature gauge and the readings I got from the guys coming off the track at Mallalla were within that range. Over 100 would be definitely too high as the tire would be starting to melt at the contact patch. For slicks maybe it is different as they rely on the temperature for traction I am not sure, but I think in the TT reces they use road tyres.