Ive not had my ifor Williams trailer long and need to check the tyre pressures but Im not sure what they should be? Its 4 yrs old, its the one which takes up to 2 16.2hh.
I've got a Bateson Deauville with 185 x 13 tyres & the recommended tyre pressures by Bateson are 40 psi. I would imagine Ifor Willioams would be similar pressures.