Steel frame/half frame bikes. post em up!

[Austin913]

if you look at the Ironman and compare it to Janek's 636 half frame, you'll see where the design influence came from.
http://stuntride.com/vbstunt/showthr...ht=janek+frame

I'm sure Stunter13 has done a bit more durability testing than I've been able to, so far.