Originally Posted by
brooklyncyclist
55-60 psi; higher on dry roads, lower on wet for better traction.
I replaced the stock (Kenda Kwest) tyres with Schwalbe Big Apple "Balloon" tyres. They are a big improvement in terms of comfort and yet have very low rolling resistance. They are rated up to 70 psi. I use them at 65 on the back and 45 on the front.
Note that these tyres come in 2" (406-50) and 2.5" (406-60) sizes. I have the 2", which are compatible with the black SKS mudguards. I am told that they are not compatible with the silver mudguards fitted to some Dahons and that the larger 2.5" Big Apples are not compatible with either mudguard.