Today I took four bike frames with zero wheels down to the local bike co-op, 15 minutes of slow, careful riding away from home. Carried them in my trailer which is a metal frame built around a 45-gallon plastic bin.

My neighbor and I (mostly my neighbor) are continually acquiring used bikes that can be stripped of their useful parts in order to keep slightly better bikes running. These ones had very few parts that would be of interest to anyone, so I suspect the bike co-op will bring them to the metal recyclers.