picked up a cheap pair off ebay and wondering about max tire pressure. i've read it's lower with mags (bmx mags in this case, but i have a mtn bike sized one also i'll want to use later), but with the aluminum rim i'm wondering if that still applies.

i want to use them on the fronts of a couple of projects and was hoping for about an 100psi tire. 20x1.5 kenda kwest, i have one on another bike i'm pretty happy with.

so anyone know? thanks.