Air under pressure

[bebee]

Does anyone know the correct tyre pressure for my Griffith 500 for this time of year?
I wish to avoid aqua planning if caught out in a power shower!

[mongoose]

Std pressures are 24 psi rear,and 22 psi front.Many owners vary on that a little though.

[bebee]

Cheers mongoose, nice one, I'll take out 12/15psi per tyre before I drive it tonight!

[simpo two]

I don't think time of year makes much difference, but the pressures are in the Filofax handbook thingy.