Since upgrading my wheels & tyres i was looking for some sort of guidance on what pressures i should be running. Stumbled across this whilst surfing the interweb, looks like a useful tool as it allows you to input your original tyre specs and pressures and then the specs of the new tyres, it then calculates what the new pressures should be. https://tiresize.com/pressure-calculator/ Hope this is of use to others, who like me have changed wheel/tyre sizes and consequentally can't find the recommended pressures on the door plate.