148 rear post mount
03-01-20, 09:38 PM
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148 rear post mount
I can't find any "official" dimensions for 148 post mount brakes. Does anyone know of any existing threads or external resources for that? I also can't find anything about SRAM's new universal derailleur hanger. I'm not sure if its best to include that topic in this same thread, or if it should be a different one. Thanks!
03-02-20, 06:02 AM
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Post mount brakes go in the same place regardless of the axle width. The standard is for a 160mm rotor, but there are specs available for larger rotors. I don't know of anyone making a UDH compatible dropout for framebuilders yet.
03-02-20, 08:57 AM
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I did find a 2D side view with measurements (can't post images or URLs yet), which helps, but I don't know the distance from the left flange.
03-02-20, 04:46 PM
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Post mount brake specs can be found in this Shimano Frame fit specs document. I'm not sure why you'd need them unless you're trying to place the mounts without a fixture or making your own fixture.
https://drive.google.com/file/d/0B-G...ew?usp=sharing
https://drive.google.com/file/d/0B-G...ew?usp=sharing
03-02-20, 04:51 PM
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I'm just teaching myself CAD, so I want to be precise in my model. I'm also going to see if Waltly will weld up my design in titanium, so I just want to have all my measurements correct.
