mystery

[eub]

The light truck in front of us had its spare tire mounted on its backside. The spare must never have been driven on, still had its sprue bristles. But wait a minute, it had them only for a 180-degree span on the bottom. None on the top.

Why?

Comments

[eub.livejournal.com]

The least implausible possibility I've got is that they just wanted to shave the tire that way, for fun.