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Did Campy Braze-on and set binder bols come in different sizes?

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Did Campy Braze-on and set binder bols come in different sizes?

Old 06-26-20, 02:28 PM
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xiaoman1 
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Did Campy Braze-on and set binder bols come in different sizes?

Hi as the post says are there different sizes of braze-ons and seat binder bolts?
I was trying to install an older set of levers on the braze-ons on the Bertoni bit the hardware seems to small and if it is going to go on it will need some "persuasion" not what I am used to doing...even the stop will not go on easily...and yes I did remove the bolt before trying to install the lever.


see anything different here?
I also have a question about the seat post-BB all of the ones the I have seen are 8mm and will not fit the hole in the frame which measures under 8...do they make smaller ones or do I need to use a file to remove a little material?

The Bertoni is slowly coming together

Thanks, Ben
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Old 06-26-20, 05:55 PM
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Charles Wahl
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Sometimes the aluminum shifter stop with square hole seems to be on the small side (better that than too large!) and if the braze-on is liberally painted, you either have to (measure and) file the hole a bit larger, or scrape paint.

Perhaps the bike had a bolt and nut (5/16", slightly under 8 mm), rather than the more complicated inside-and-outside threaded Campagnolo type of binder bolt. I'm reasonably sure that it's OK to run an 8 mm drill through there to get a bit more clearance. Make sure that the mounting ears or tubettes are aligned with each other, though.
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Old 06-26-20, 10:24 PM
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Originally Posted by Charles Wahl View Post
Sometimes the aluminum shifter stop with square hole seems to be on the small side (better that than too large!) and if the braze-on is liberally painted, you either have to (measure and) file the hole a bit larger, or scrape paint.

Perhaps the bike had a bolt and nut (5/16", slightly under 8 mm), rather than the more complicated inside-and-outside threaded Campagnolo type of binder bolt. I'm reasonably sure that it's OK to run an 8 mm drill through there to get a bit more clearance. Make sure that the mounting ears or tubettes are aligned with each other, though.
Charles,
Understood but the plastic washers, as well as the metal flat washers with the rectangular cutouts, won't fit...I did manage to get some campy synchros to go on without any issues..so I am a little baffled as to what is going on with the older stuff.
I will try a good cleaning in the AM but still not sure.

You may be right on the binder bolt, I found the female side of one that measured 7.59 and it fit, unfortunately, no male side was found so I may need to run a drill through it.
Thanks, Ben

Last edited by xiaoman1; 06-26-20 at 10:30 PM.
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