Front derailleur clamp band adapter question.
#1
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Front derailleur clamp band adapter question.
Is there any reason why Shimano's SM-AD67-L (34.9mm) clamp band adapter would not be compatible with a Shimano's Ultegra FD-6700 direct mount front derailleur?
The SM-AD67 is promoted to be used with Shimano's Ultegra FD-6800 direct mount front derailleurs. From what I've read, this clamp band adapter accommodates the support bolt and plate of the newer derailleurs. Does anyone have knowledge or experience of this adapter's backward compatibility with an older direct mount derailleur - particularly an FD-6700?
The SM-AD67 is promoted to be used with Shimano's Ultegra FD-6800 direct mount front derailleurs. From what I've read, this clamp band adapter accommodates the support bolt and plate of the newer derailleurs. Does anyone have knowledge or experience of this adapter's backward compatibility with an older direct mount derailleur - particularly an FD-6700?
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It'll work. They're not 'direct mount', they're referred to as 'braze-on'.
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#3
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Thank you "cxwrench".
I appears that there is such a thing as a direct mount front derailleur but as "cxwrench" correctly pointed out, what I am referring to is a 'braze-on' front derailleur.
I appears that there is such a thing as a direct mount front derailleur but as "cxwrench" correctly pointed out, what I am referring to is a 'braze-on' front derailleur.
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CF frames tend to use direct mount. Steel & Titanium can use braze. Aluminum would more likely use a clamp.
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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.
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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.
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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.
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.
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.
Then Google braze on front derailleur
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No matter what the FD requires for installing on to the seat tube, it will always require a certain mounting style for it to be held in place on the seat tube. As long as the need is known & achieved, the terminology is a YMMV.
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True, but if you go into a bike shop and ask for a front derailleur for a braze on mount they'll immediately know what you need. Same if you ask for a direct mount front derailleur, they'll know it's for a mtb. I'm not making this up, it's always been this way. The industry sets the standard for terminology in cases like this, not what some random guy thinks it should be called.
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Yeah, as a long term amateur, I've never heard any other terms but braze on for that type of road FDs. Shops, riders, mechanics, websites, what have you use that term and no other that I've seen. It's the proper and universally accepted and understood term, period.
As a maybe interesting aside, is it becoming more uncommon to see clamp on FDs with various clamp diameter options? Seems like they're defaulting to braze on derailleurs and clamp adapters of various sizes.
As a maybe interesting aside, is it becoming more uncommon to see clamp on FDs with various clamp diameter options? Seems like they're defaulting to braze on derailleurs and clamp adapters of various sizes.
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True, but if you go into a bike shop and ask for a front derailleur for a braze on mount they'll immediately know what you need. Same if you ask for a direct mount front derailleur, they'll know it's for a mtb. I'm not making this up, it's always been this way. The industry sets the standard for terminology in cases like this, not what some random guy thinks it should be called.
My post was more about yanking your chain about your need for hyper-accuracy about bicycle terms.
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if a random female calls it the dookickey that goes with "it" , the shop will also likely know what to do.
The sky isn't a cold color today, but it's grey.
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Yup. This is the bike world. Where a thread-on steel block with a freewheel mechanism inside is a "freewheel" but that term no longer applies if you put the freewheel mechanism inside the hub. (If then becomes a "cassette" hub. If you call it a "freewheel hub" you will be corrected even if you are differentiating it from a fix gear hub.)
Good thing is that my ti bike has no FD mount so it has to run clamped and cannot be saddled with braze-ons. (Also good in that being a 31.8 OD seattube. I could use an asymmetrical shim, a 34.0 (I think that is right) clamp and bring the FD further inboard to achieve good shifting with a triple using a crankset setup to a low Q-factor.
Good thing is that my ti bike has no FD mount so it has to run clamped and cannot be saddled with braze-ons. (Also good in that being a 31.8 OD seattube. I could use an asymmetrical shim, a 34.0 (I think that is right) clamp and bring the FD further inboard to achieve good shifting with a triple using a crankset setup to a low Q-factor.
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For a second there I started wondering if they'd started making direct mount front derailleurs for road bikes.
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Let’s not be sexist, okay? I’ve had numerous XY chromosome individuals at my local co-op who are clueless about the various doohickeys on a bicycle. I’ve also worked with numerous XX chromosome volunteers and paid mechanics who know what all the various doohickeys on a bicycle are called and can help any one find the proper part. Some even go so far as teaching other people how to fix their bikes.
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Lets not assume it was directed at a LBS business. Could be a dress shop for males. Don't read beyond the point to make yourself overly sensitive.
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Then why not say “a random person”? Don’t post in a manner that can be interpreted as being sexist. I read nothing into your post other than what you put there.
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...so are "whatsit", "thingamabob", and "thingy" also to be considered unacceptable ? This is where I come to learn this stuff.
...so are "whatsit", "thingamabob", and "thingy" also to be considered unacceptable ? This is where I come to learn this stuff.
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Not absolutely sure but I think 'dimdogger' might be ok.
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Simply not reading my post, not responding to my post is just as effective as not assuming. Do not direct my way of language because you are not willing to accept a different culture.
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Do not direct my way of language because you are not willing to accept a different culture.
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Last edited by cyccommute; 04-20-21 at 04:57 PM.
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you're choosing to interpret my words with how they align to your feelings. I have no problem in you doing so as long as you do not infringe to my harmless intent. Do take me the wrong way, I'll still waive at ya when out riding.
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Here’s a test: read your exact words to any given female in your life and see how they feel about your “harmless intent”.
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