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Framebuilders Thinking about a custom frame? Lugged vs Fillet Brazed. Different Frame materials? Newvex or Pacenti Lugs? why get a custom Road, Mountain, or Track Frame? Got a question about framebuilding? Lets discuss framebuilding at it's finest.

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Old 05-03-12, 08:36 PM   #1
jbrow1
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Brake bosses 80mm width

Curious how important the 80mm width is when attaching brake bosses? I assume this is center to center? Curious as to why this is the best placement for them, rather than just take google's word for it.
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Old 05-03-12, 08:59 PM   #2
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The real boss position is dependent on pad extention, rim width, brake arm/straddle cable angles and interference with racks and such. That's why you should mock it up. Any published standard is only the starting point. Andy.
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Old 05-03-12, 09:52 PM   #3
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Particularly when working on your first frame it pays to have all the parts together first. Then you can build for the parts. Of course you want to be careful your bike isn't too custom for the real world, but I still like to have all the real stuff to measure up.
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Old 05-04-12, 07:19 AM   #4
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Thanks guys
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