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Rear disk pressed against caliper with no apparent adjustment available

Rear disk pressed against caliper with no apparent adjustment available


  #1  
Old 09-13-21, 03:58 PM
J
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Rear disk pressed against caliper with no apparent adjustment available

This is my Cannondale bent 2. Never had this problem that I've noticed and have been riding this bike for a long time. I can't see what happened to have had this result nor can I see any thing to adjust. Any ideas? Otherwise I'm thinking I just need to find a washer to put on the axle there to push the caliper out a bit. Thanks!

 

Last edited by PJmax; 09-14-21 at 11:58 AM. Reason: labeled pic
  #2  
Old 09-13-21, 08:48 PM
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Usually the calipers float (slide) and center automatically over the rotor.
Possibly the caliper is frozen and won't slide.
 
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Old 09-14-21, 02:51 AM
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My bike has an adjustment screw for one pad but it looks like your wheel has been installed crooked so that the disc is not centered in the gap between the pads.
 
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Old 09-14-21, 11:55 AM
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I agree. It looks like if you loosen the axle bolt on that side you can slide the hub further into the fork. That will center the disk in the brake hub.
 
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Old 09-15-21, 12:19 PM
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Here's a page (on Park Tool's website) on how to adjust an Avid cable-actuated disc brake. There might be differences (both pads move in some cable discs but only one pad in others) but it should get you headed in the right direction.

EDIT:
Here's a link to the mfgr's manual with details on how to adjust the Bb7 model or the Bb5 (which apparently are different).
 
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Old 10-05-21, 11:10 AM
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Well there was no way to adjust anything I could find. The alignment is just off for some reason and the axle can't fit into the fork any other way but right in it. So I just threw in a spacer about a mm thick and it did the trick

How did that red arrow get inserted into my original Pic BTW lol?
 
  #7  
Old 10-05-21, 01:30 PM
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I'm listed in that post as modifying it.
That's where I explained the the axle can be slid in and out of a slot to center the brake hub.
 
 

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