Originally Posted by MKIV987
Interesting. What's it made of?
Basically, it was a cart like this design, that I bought used.
It has 20" wheels with ball bearing axles. [ a MUST] From a local metal scrap yard, I got a piece of 1" square aluminum tubing, 8 ft long, plus about 2 ft of flat aluminum 1/4" x 1 1/2" wide. This was used at the 2 bends in the tubing as braces, one for each side with each end cut at 45° angles, & bolted to the tubing. I bent the tubing in a vise, but with aluminum, you have to be careful not to bend too much, then have to bend back, because it can break there. The small flat pieces work fine. Tubing is bolted through the bottom of the wooden bed, another bolt to the cart " handle. I then cut the tubing to the right length allowing the trailer to be able swivel behind the bike. I attached the tubing to a piece of web strapping about 18" long. 2 bolts hold the strapping to the tubing plus I put another bolt thru both sides of the strap only, closer to the seatpost . This keeps the end of the tubing from hitting the seatpost. There is a little slack in the loop to allow the trailer to twist & tilt at the connection. I will probably move the axle forward to the center of the trailer. Notice the front " leg " of the original cart, which I tucked back under the bed . It is easy to remove the parts & re-use the cart for it's original purpose. Trial run went well with the cart easily pulled behind the bike using an extra gear or two.
[ sorry for so many typing errors ]
Last edited by Esteban32696; 09-04-12 at 06:01 AM.