Not really, but that’s what I feel like doing now. Ya ever do something for a while and then change the way you do it and feel like changing all the previous examples? Well, I won’t be going all George Lucas on everyone, but I really like this set of chainstays that I did from 7/8″ round 4130.
Let the pictures commence.
Here’s the starting point on my frames, the seat tube sleeve is marked with an engraver over a paper template and Sharpie.
Then I braze it to the seat tube at the appropriate place
Then I have to cut the seat tube to match the sleeve, so I cut those points twice.
Aaaand enough of that. On to the money shot, which is the new chainstay design.
Right here, 7/8″ mil spec 4130 chromoly tubing, bent and dimpled to clear a 2.3″ tire with about 5mm on each side, and healthy clearance for chainrings and cranks. I can’t see it very well, but I tapered the tubes down to about 9/16″ on the drop0ut end. It’s a short taper, only about an inch, and I think I’ll be doing it over a longer section in the future.
Don’t mind the Sharpie marks, after I tack the frame I check alignment. The marks are for me to braze everything into alignment, and they’re almost always the same. I guess that means my process is fairly repeatable.
More soon, thanks for stopping by.