You'll need the following ingredients to make this trailer:Parts
4 x 10' 1/2" electrical conduit
front fork of junker bike*
rear wheel triangle of junker bike*
head tube and seat post of junker bike
wheel (16" or 20" -- I used a 20" tire off my daughter's old bike)**
1" to 3/4" conduit step down washer
1/2" screw-type conduit connectors (3)
*This was made using a 26" mountain bike since it's going on to be used behind 26" mountain bike. I recommend using the same size (or larger) fork/rear triangle as you have on the hauling bike.
**While you could use the wheel from the junker bike if absolutely necessary, having the smaller diameter tire allows the trailer to be parallel to the ground.Tools
brazing torch and rods (I used MAPP vs. propane for a quicker job)
hack saw (w/ metal blade)conduit bender
*This is used to cut the holes in the fork. A metal bit is required. I used a Lenox 3/4" Arbored Hole Saw Drill Bit
and it work liked a champ.Extras
And now, a word of warning, courtesy of Fletcher
A word of caution about working with electrical conduit: Conduit is generally galvanized, meaning it's got a thin coating of zinc. Zinc is toxic; grinding, welding, brazing, etc. will vaporize the zinc, raising the risk of inhalation. Before working with galvanized pipe, remove the zinc layer (it's thin, so sanding/use of a wire wheel or brush will do it) in an area with good ventilation. A fan would be a good idea, as would a quality respirator (a simple filter mask won't do.) Conduit is a good, inexpensive basis for building all sorts of things ; just remember to take the proper safety precautions.