That slot where the... axle... attaches to the frame looks really dangerous, too. A loose nut results in a wildly off-axis wheel.
Unless that nut and bolt sticking out of hte back of the frame does something to hold it in place.
__________________
_________________
|...............| We live in the nick of times.
| Len 17, Wid 3 |
|_______________| [pics]
|