Originally Posted by
Live Wire
Best would be to cut off the front triangle and build a new one as you'll never get brass brazed lugs apart without destroying some pieces and/or totally nuking the head tube. But, are worksman frames brazed? I thought they were all tig/mig.
On a welded frame, you could grind the old down tube welds off, do the tube extensions on the top tubes, and put in an entirely new down tube, better for safety and easier since it will be meeting the headtube at a different angle than the old one.
Worksman frames are brazed with brass, confirmed it with one of their builders.
Since the frame tubes are lugged at the seat, head and bottom bracket there's no way to lengthen the frame without completely removing the tubing or cutting and adding a section.
I haven't been able to find lugged head tubes or bottom bracket shells that are even close to the ones used on Worksman, anyone know where they might be found? The lugs are part of the head tube and bracket shell and are very strong.