Does anybody have a size large or medium boom for sale? I emailed Terratrike and they said all the booms with the exception of the sliding boom on the (rambler) are interchangeable. I don't care about color. I can trade an xs size boom in blue if interested. If i can't find one i will create my own but if one is out there that would seem to be the path of least resistance. firstname.lastname@example.org I spoke to the hostel shoppe five days ago they said they would check but no word from them so TerraTrike must not have them anymore.