The owners manual for the 1100 says 36/42 f/r for the ST1100. cold.
Although there isn't a law specifically around tyre pressures in the uk, there is a law about driving with tyres in an unsafe condition, and significantly incorrect tyre pressures would be considered unsafe. A 10% margin is sometimes mentioned.
So I was just pointing out the correct info.
42 psi for a tyre that should be 36psi (cold) is 17% over inflated.
36 psi for a tyre that should be 42psi (cold) is 14% under inflated.
And accident scene investigators have been known to check tyre pressures.
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