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  1. #1
    JSR
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    Centerlock Disc Rotor Compatibility

    I just bought a set of aluminum wheels for winter use on my Domane. The hubs are set up for centerlock rotors so I’m on the hunt for those.

    I’ve found the Shimano compatibility chart which identifies six rotors that are are specified for use with my BR-RS805 calipers. The question is whether there really is any compatibility requirement. Apart from performance issues (weight, heat dissipation) shouldn’t just about any 160mm rotor work?

  2. #2
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    There are probably 2 different rotor types and 3 sizes for each, right?
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  3. #3
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    Any rotor, so long as it is centerlock should work. Just remember there are at least 4 different opinions about how thick a rotor is when new, and when it is shot.

    https://www.velonews.com/2011/10/mou...n-holes_252053
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  4. #4
    JSR
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    Quote Originally Posted by cxwrench View Post
    There are probably 2 different rotor types and 3 sizes for each, right?
    Yeah, there’s centerlock vs 6-bolt, and 140/160/180 mm diameters, if that’s what you mean. Presuming I stay with centerlock and 160 there are still a lot of rotors available even within the Shimano lineup. The six named by Shimano all seem to have “IceTech” branding, their steel clad aluminum thing.
    Quote Originally Posted by Marc View Post
    Any rotor, so long as it is centerlock should work. Just remember there are at least 4 different opinions about how thick a rotor is when new, and when it is shot.

    https://www.velonews.com/2011/10/mou...n-holes_252053
    Interesting article. It had occurred to me that thickness might be one “compatility” factor, but Shimano rotors are as,thick as any of the others Zinn mentions. In my mind anything thinner would also work, but thicker might not.

    Here’s the link to the Shimano compatibility chart. Scroll down to page 25 for disc brakes. http://productinfo.shimano.com/download/pdf/com/2.0/en. I hadn’t noticed before, but they provide reference for pad material compatibility as well as narrow/wide pads.

    Staring at that chart now I see that there is overlap between the rotors identified in the group with the RS805 and the group below it, indicating the two groups are similar in fit.

  5. #5
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    Any of the Shimano Centerlock rotors should work if they are the right size. I've used a couple different versions on mine, the RT99 Freeza was on sale at Merlin a couple weeks ago for a good price, and it should be one of the better performance choices.
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