Rear Triangle
Here's the assembly fresh from the donor. The seat stays have been cut at the top and I am getting ready to un-braze them from the drop out.
With some manipulation I found a configuration where the brake braze-ons were already properly positioned. This is fortunate since the brake "braze-ons" are actually welded to the seat stays by the manufacturer..
I tacked the brake bridge to the seat tub with a bit of scrap and then cut the stays and seat tube. After cutting I carefully filed the surface to be as parallel as possible to the bottom bracket since this is where the rear shock will be mounted.
I welded up a bracket out of 4130 for the shock mount and made a jig to hold it centered and parallel. It and another top plate were brazed into place.
This is the completed triangle. I'll use the bottom bracket for my suspension pivot.
