Originally Posted by redorchestra
what is your method for cutting and refitting your bike?
It's based on this:
which was kindly linked to me by Velonomad on the framebuilding page.
Effectively I noticed that a modern MTB stem where it fits an aheadset will fit the downtube of an old steel frame (29mm, I believe). The handlebar section of a quillstep will fit the toptube perfectly. You can use the handlebar section of the MTB stem also, aor the aheadset section with a sleeve. They all fit.
You simply cut the frame, and at the bottom find a section of tubing that will fit into the downtube. I'm not sure yet how to fix it. I'm not sure it even needs fixing (though it would be better). It simply adds rigidity and security. You slide the cutdown stem secions over the tubes in the manner you see the sleeve above, and then, when the frame is assembled, slide them over the join and tighten VERY well.
I've not take it out for a ride yet as I've not had time to build the bike bak up, but I've pulled and pushed the frame with all migh might, and I can;t get it to budge, nor even flex more than normal.
Of course, i say do this at your own risk. The risks are obvious. I'm only persuing an idea I've had for myself.
But like I say, I's working for me.
I'll let you know.