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  1. #1
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    Can I loose the CPS washers?

    Just installed a set of the new XO Trail brakes on my buddy's bike; no CPS washers...must bolt it straight to the posts. Can I remove mine from my Elixir 7s?
    Geologist by trade...bicycle mechanic (former) by the grace of God!

    2012 Specialized Stumpy EVO 29 HT

  2. #2
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    Pretty sure that Avid did away with the CPS washers. For the better.

    Edit: From the stock photo on their site, it looks like they are using CPS washers under the bolt head, but not between the caliper and adapter. I don't know. I'm free of Avid brakes.

    Can I loose the CPS washers?-avid_x0_trail_blk_ano_products.jpg

  3. #3
    rebmem rbtm
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    Can I remove mine from my Elixir 7s?
    You could but you'd have to replace the CPS washers that go on the underside of the caliper with a spacer of an equal length of the CPS washers, otherwise the caliper wouldn't be packed out enough and spaced at the right distance.

    Avid now makes non CPS calipers as well as the old style calipers that still require CPS washers.

  4. #4
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    I will just leave them on then. Since I went to Alligator rotors, organic pads, and CRC brake glue stuff, mine have been flawless for over a year. On the other hand, I will not get Avids again by choice.
    Geologist by trade...bicycle mechanic (former) by the grace of God!

    2012 Specialized Stumpy EVO 29 HT

  5. #5
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    Can I loose the CPS washers?

    This brings up a good point. Why are there washers between the bolt head and the brake? Arnt these supposed to help adjust angle? If so how can they adjust angle if you have them outside the brake?????

    Bill

  6. #6
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    The CPS Cones/Washers should go between the caliper ant the adapter, not between the bolt head and the caliper.

    Avid Calipers are either CPS (BB7, older and some current Elixir) or non-CPS (newer Trail Brakes and XX). CPS calipers are offset from standard ones, so must use some form of washer to properly contact the rotor.

  7. #7
    rebmem rbtm
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    Quote Originally Posted by crossracer View Post
    This brings up a good point. Why are there washers between the bolt head and the brake? Arnt these supposed to help adjust angle? If so how can they adjust angle if you have them outside the brake?????
    Quote Originally Posted by Skidsy View Post
    The CPS Cones/Washers should go between the caliper ant the adapter, not between the bolt head and the caliper.
    When using a Non CPS caliper with 180mm PM to PM adapter the CPS washers are used between the bolt head and the caliper for a good reason.
    If you tighten down a bolt when using a180mm PM to PM adapter without the CPS washers there will only be a small area of the bolt head that actually tightens down on the caliper as the underside of the bolt head isn't parallel to the topside of the caliper.

    Shimano uses the same setup with their 180mm PM to PM adapter.

    http://techdocs.shimano.com/media/te...9830667774.PDF

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  8. #8
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    Can I loose the CPS washers?

    Ahhh, thanks. Now I get it. Much appreciated .

    Bill

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