Originally Posted by
Jonneh
I see, sounds good. I took it for granted that the epoxy wouldn't serve a structural funcion, and was rather there just to hold the tee nut (and therefore just for bearing preloading purposes), but if it also resists compression that's another matter.
Do you have any data that vouches for epoxy in such a role, or it it based on personal experience?
I'm a mechanical engineer. JB Weld epoxy has a tensile strength of over 5000 psi and great bond strength. I first made this type of modification over 10 years ago. I just sold the frame with that mod this week. It works perfectly. I also built up two new Colnago frames recently and made the same mod to them. I've even used this product to extend the length of a steering tube by up to 15mm.
https://www.jbweld.com/product/j-b-w...fessional-size
The question about this oval tube is what the maximum diameter is - 1-1/8" of something larger? Getting threads centered in the long direction might be a bit tricky.