www.bridgestone.eu

Use the tyre guide on there, it will tell you the correct pressure for your bike too in bar (1 bar = 14.7psi)

I know the front should be 36 for sure though, but the rear pressure vary's from sooooki to sooooki (and riders weight lol)....can usually gauge the rear though from the ride....if the pressure it too much it will feel rock hard and shimmy over everything....if too soft will just run wide all the time