I went to Adams' web site and see there is a new "original folder compact". The compact is listed for 3-5 year olds instead of 4-6 year olds on the original folders. (shorter reach and shorter cranks) Since my little guy is turning 3 in April this definitely caught my eye. Does anyone have the compact TAB? How about any experience putting a 3 year old on a TAB? I see that Adams does sell a backrest and attached belt to help keep the kid on the bike. I have a feeling that my son would love this, although we'd obviously have to start with very short rides. We are currently riding with the InStep trailer.