I have owned an EZ-tadpole, and it held me. I am 6'8"ish and 400 lbs. I sold the trike, but I've found (the hard way through road rash) that this nearly 60 yr. old really needs a trike to be safe and enjoy riding again. 2-wheeled recumbents are too unstable for me. Could any of my "fellow" Clydesdales who own or have owned a trike that fit a very tall, very heavy person reasonable well? I might just go back to the EZ-(sun)-tadpole, but they're not terribly nimble and weigh almost as much as I (well, not quite, but....) So, please, any comments on trikes for huge guys would be most welcome.