simple bike hitch for under the seat
How to make a trailer-ball hookup for a bike.
Radical Design Bike Trailer Hitch Radical Design http://www.amazon.com/dp/B00I8VTUOU/ref=cm_sw_r_pi_dp_cOu7ub0Y91EW7
Morgan Cycle Coupler Hitch for Shadow Trailer Bike Morgan,http://www.amazon.com/dp/B004QU3SUO/ref=cm_sw_r_pi_dp_QnFetb11EHSBF714
It takes about five seconds to connect the trailer when I want to us it, and the same to un-hitch it. Just align the hitch with the strap on the bike.
Bike Trailer Hitch made from a caster wheel.
diy+bike+seat | udallcustombikes , Oct 14, 2009
Just a Car Guy: Johnny Payphone Tumblr bicycles
Trailer bike hitch kit pre 2011