For those concerned with chewing, I have exercise wheels in with mine and they spend so much time on those they haven't touched any of the chew toys I've offered. Nor do they display any behavior that resembles any form of trying to escape.
Great idea ...I have considered that....I won't use a metal wheel for any long tailed rodent as I have pulled one too many tangled tails out of them...a solid wheel would work great if I could find a metal one.....