http://www.gasbike.net/products/back-rest-saddle-bike-seat I stumbled across this poking around on gasbike, which I don't normally do, as every time I've called them, I get an unintelligible accent from some different backwater country, but they've a few items I'm interested in, this is one, the mag rims with built in hub adapter is the other. Any input on either item would be greatly appreciated. While of course, both seat and rims would work and look good on Tanglebones, they would be choice on the Micargi Mustang I'm putting serious thought to. That is of course if they're well made. I've eyed the wheelset for so long, I'm ready to buy it and see for myself. But about the seat...does anyone know if you can trust that back rest at all?