Adams Trail-A-Bike Bicycle Trailer for Sale. Used, but in good condition. Below is info from the manufacture… Simplicity can be a wonderful thing. An evolution of the model that created a new category of bicycles back in 1986, the Original Folder 1 is the perfect way to get younger kids out for a ride with the whole family. • Simple single-speed is easy to ride • Folding frame for easy storage and transport • Patented design will fit most 26" and 700c lead bikes • Sturdy steel hitch with 4 shim options to work with almost any seatpost • With a full chainguard and bashguard it's as durable as it is fun • Weight: 23.5 lb (10.7 kg) • Load rating: 85 lb (38.5 kg) • For ages 4-6