No Weld Bicycle Trailer Hitch

This is a complementary instructable to the No Weld Bike Trailer. This instructable will show you a quick air hose coupling based trailer hitch, that connects to that trailer.

The supply list for this hitch is well under 5 bucks, here is what i used:
1 Male Airhose coupling
1 1/4" bolt
1 1/4" nut
1 U bolt (1 and 1/4")

Drill
Drill bits necessary to complete the job.

Most Ubolts will come with a metal plate, Drill into this with a standard drill bit about 1/4"

Put the nut on the bolt and the put the bolt through the metal plate like the picture below.

Thread the airhose coupling onto the bolt, Use 2 wrenches to tighten everything down sufficiently.

Put the bolt onto the ubolt like so:

Lastly attach the hardware to your seat post and ride! If you don't want to scratch your bike seat post, wrap it in an inner tube. Use a crescent wrench to tighten it down.