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  1. #1
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    Can Avid adapters be used with Shimano calipers?

    I am switching from 6" rotors to 8" rotors, and when looking at the adapters the Shimano ones are nearly 4 times the price of the Avid ones.

    Shimanos are 40 bucks at Universal for 203mm
    http://www.universalcycles.com/shopp...9&category=496

    Avids are around 11 bucks
    http://www.universalcycles.com/shopp...8&category=496

    I am using '07 XT calipers and 203mm Galfer Wave rotors.

    Another related question, I am putting these on an '06 Marzocchi 66 Light which has the 74mm post mounts, so I am assuming I need the post mount version, but Shimano also stocks a Marzocchi 20mm version of their adapter in addition to the standard post mount. Which of these do I need if I must go with Shimano?

    Thanks for the help

  2. #2
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    Reputation: mtb_biker's Avatar
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    Yep, the adapters will work fine as long as they're the correct rotor size adapters.

  3. #3
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    Quote Originally Posted by mtb_biker
    Yep, the adapters will work fine as long as they're the correct rotor size adapters.
    Sweet

    Now I noticed that Avid has three different flavors of front adapters that according to the description sound like they would work.

    There is the "203mm / Front / Marz 20mm" P/N: 11.5373.602.300
    The "203mm / Front / 74mm Post" P/N: 11.5373.302.200
    And the "203mm / Front / 74mm" P/N: 00.5315.012.060

    http://www.universalcycles.com/shopp...8&category=496

    Which of these adapters should I be ordering?

    I've looked through the Avid website for info but didn't come up with anything.

    Thanks again

  4. #4
    Nightriding rules SuperModerator
    Reputation: crisillo's Avatar
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    you need the

    00.5315.012.060 CPS Mounting Bracket Extruded - Front 203 Post

    page 22 from http://www.sram.com/_media/techdocs/...-000_Web_B.pdf

  5. #5
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    Quote Originally Posted by crisillo
    you need the

    00.5315.012.060 CPS Mounting Bracket Extruded - Front 203 Post

    page 22 from http://www.sram.com/_media/techdocs/...-000_Web_B.pdf
    Great, I am assuming that it doesn't come with bolts. I've never used a 8" rotor on a post mount fork. I have the bolts from an 8" IS mount and bolts for the 6" post mount. Are the bolts for the 8" post mount the same as the 6" but longer?

    Anyone know where to find the bolts?

  6. #6
    Nightriding rules SuperModerator
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    Quote Originally Posted by big_mountain_biker
    Great, I am assuming that it doesn't come with bolts. I've never used a 8" rotor on a post mount fork. I have the bolts from an 8" IS mount and bolts for the 6" post mount. Are the bolts for the 8" post mount the same as the 6" but longer?

    Anyone know where to find the bolts?
    adapters usually come with bolts....the bolts on the 203mm PM bracket are not aligned as in the 185mm one...so you will use 4 bolts.....2 to attach the adapter to the fork and 2 for the caliper

  7. #7
    Meh.
    Reputation: XSL_WiLL's Avatar
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    The 20mm is for IS tabs. Marzocchi offsets them on their forks so the adapter is thicker. You need the post mount to post mount adapter.

  8. #8
    Nightriding rules SuperModerator
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    Quote Originally Posted by crisillo
    adapters usually come with bolts....the bolts on the 203mm PM bracket are not aligned as in the 185mm one...so you will use 4 bolts.....2 to attach the adapter to the fork and 2 for the caliper

    here's how it looks


  9. #9
    Meh.
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    The potential issue is that the adapter is too shallow and the caliper may contact or bottom on the adapter before the bolts can be snugged down.

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