The terratrike i bought on some days ago was medium boom and then my dealer changed into small boom. Since then i rode and one of the most annoying problems and disappointing problems i had encounter has been the chain. The chain came off often, it is really annoying and my dealer just tighten the chain up little bit, still the chain is coming off. I am really pissed off because i have planned a long trip on easter. Terra trike chain routing design is really flawed. Is there any way of returning the product. i just bought on 1st april 2010. either teratrike fixed the problem have their dealer professional enough to fixed it. Otherwise i want my hard earned money back.