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PostPosted: Thu Aug 23, 2012 3:45 pm 
Gold Trader
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Joined: Mon Jan 15, 2007 11:40 am
Posts: 3000
I've recently bought an early model avid mechanical disc brake. How can I work out what rotor size it needs? I know some rotors are 160, others are 163 or 165... Have all avid disc brakes always been the same size (and what size)? Do I just need to try various sizes and see which one works best? Is it possible to use a slightly smaller rotor than the original size (160 instead of 163, for example)?

Thanks!


Last edited by foz on Mon Sep 10, 2012 9:40 am, edited 1 time in total.

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PostPosted: Thu Aug 23, 2012 4:03 pm 
Gold Trader
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Joined: Wed Nov 24, 2010 11:57 am
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Location: South Hams - Devon
I've got some early BB7's , the silver ones , with Shimano 160mm rotors and they're aligned fine. Also have had Hayes 160 rotors with Juicy 3's without any problems so I'd go with 160's being the standard Avid size. Of course you can always change the brake adapter you fit them to the frame with to use various size rotors.


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