For the bike contest, I made a bike trailer hitch. It is 1/2 inch, and attaches to any bike. It can tow almost anything, if you have the trailer for it and the leg strength.
I made it in solidworks. The part that i made is in the second picture. It is a trailer hitch that is designed for a bike.
the kayak,bike, and trailer frame is from GrabCad.
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.