Pedicabber here.

A couple of weekends ago a buddy got a flat and they couldnt take off the tire. He had someone bring a new front tire out. When I got that tire to come off as fast as a prom dress. He needed to switch tired because the replacement was torn.

Now he had the problem of having to carry a spare rim. I took the old tube and used it to lash the tube onto the undercarriage of the pedicab.

Also, I am saving old tubes in hopes of making frame bags for the pedicabs.