Here's my home made bicycle trailer, just a suitcase an old 3 wheel stroller chassis and a stainless steel draw bar. It connects to my Birdy with a rose joint and a stainless pin that i turned a groove into which connects with a captive pin in the tow hitch!


Post Script, loaded up the trailer with 28.6kg of shopping today for a 10k section of a 36k ride an all time PB for this set up!