CleverRaven/Cataclysm-DDA — pull request #10352 by malhawee (2014-12-06 10:33:46+00:00)
Title: Shopping carts don't need jacks

Any wheel with a width less than 4 (inches?) can be removed with a jack.
Also changed some wheel widths that seemed inconsistent.
Figured that with some motorbikes you need something to keep the bike level, like a jack, so that was the tipping point.

Not 100% on where the wooden and metal wheels width should be.