All right, thanks, the orders are pouring in! I was thinking of something simple like the basic layout of the BF, with the rear triangle attached to the post with the loops like they built, except just eyeleting on to mini axles. So the rear triangle would hang on the frame the way the forks hang on a wheel, or the way the Xtracycle bolts on. On the other hand getting the transverse "axles" attached isn't necesarily a clunk free exercise. Sadly there isn't a BF dealer in Toronto where I can see one. If anyone wants to show me one, it might just be simpler to go with their system. I have a lathe, Tig, and tubing benders, so this is mostly, but not totaly, pie in the sky. I've been building motorcycle frames for the last while.