Any wisdom with regards to how close a butt can be to a weld/braze joint?
25mm is always what I used as a bare minimum. But I like to have quite a bit more where the action (ie head tube) is.
-Walt
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Is the 30mm valid for lugs as well? How long should the butt section go beyond the tip/point of a lug?
Thanks!
Others may have more experience based feedback but I always make sure the lugs tips are within the butted area. I’ll shorten the tips up a little if I need to.
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Thank you!
I guess that if it comes down to filing the lug, only a few mm within the butt section will do the trick? I currently have about about 3-4mm.
You also have probably 40mm of transition so a mm or two should be fine. Also, if you’re tubes are so short that you’re running out of butted material, the frame may be for a light rider which will also be in your favor. The bottom lug extensions should also be broadly rounded, not pointy.
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