The second trailer had a poorly implemented hitch design that let it tilt side to side far more than I expected. I didn't make any consideration for it being single track. In hindsight I should have had the lean angle mimic the first trailer and therefore the bike, but I didn't have much time and didn't test any of it before I set out for the afternoon.
The whole thing stayed straight as an arrow, but after twenty metres that seat was repurposed as cargo space for the rest of the ride so nobody got sick from becoming a weeble wobble.




