Originally Posted by
Troul
Brazing an item is joining together [fusing] metal by melting & flowing a filler metal into the joint. Direct mount using hardware to affix the part to its component.
The front derailleur that attaches to this type of mount has always been called a 'braze-on' front derailleur and the one w/ the built in clamp...well, you can figure that out.
Doesn't matter what material the frame is made with and whether the mount is actually brazed on, riveted on, or bonded. It's called a braze-on.
Originally Posted by
cyccommute
Since you like to get hyper-technical about this stuff, they are incorrectly referred to as “braze-on”. Whether or not the mount is “brazed on” would depend on the material. Steel could be have the mount brazed onto the frame. Aluminum and titanium and some steel frames are going to welded. Carbon is going to have the mount glued or riveted in place.
And, if the mount is a clamp, it’s not “brazed” in place.
Frankly, “direct mount” is a better description for the mounting than “braze-on”, considering the relatively few frames that will actually use a brazing technique to attach the mount to the frame.
'Direct mount' refers to a mountain bike derailleur that was the last mounting style before everyone decided that 1X was the way to go. Google
direct mount front derailleur
Then Google
braze on front derailleur