On Wed, Oct 26, 2011 at 11:08 AM, pruckelshaus <pruckelsh...@gmail.com> wrote: > I have never seen a frame crack that way. > >
Lots of frames break that way, they usually don't go quite that long before discovery. But if you take any normal steel frame break and let it go for a long time it will propagate all the way around the tube/joint eventually. Lug-tube interface is a nice place to have a crack start, especially if they are poorly brazed, or if they are otherwise not well made (overcooked, missing brazing material, etc.) . I had a lugged track bike that almost dropped the bottom bracket into the road while riding it. It was a very flexy frame anyway and was covered in ice and mud when it happened, so it was not completely obvious what was going on, I thought I had a loose crank interface when it got bad, felt just like a precessing crank until I stood up on a climb and the bike started going sideways... I actually had repaired this frame before due to a crack in the headtube in the tube next to the lug. I caught that one pretty early. http://www.tariksaleh.com/bike/bones/crack.html But steel frames actually break fairly often, and if you let them go for a while, the cracks look just like that, through the tube into and out of the lug. Tarik -- Tarik Saleh tas at tariksaleh dot com in los alamos, po box 208, 87544 http://tariksaleh.com all sorts of bikes blog: http://tsaleh.blogspot.com -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
