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  1. #1
    Bike Virgin
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    Can I Adapt Direct Post Mount 160 to 180mm?

    I have a '12 Scott Scale Team and I am planning on upgrading the front 180mm disk to 203mm and I would like to put the 180mm disk on the rear. The problem is that the rear posts are sized for a 160mm disk without using an adapter. Is there a way to adapt them to 180mm?

    Thanks in advance.

  2. #2
    Trail Tire TV on blogger
    Reputation: thomllama's Avatar
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    supposedly the post mount rear is the same as the front, so you just get a front post mount for the correct size rotor..
    Going to try and bring Trail Tire TV back. go take a look... http://trailtiretv.blogspot.com/

  3. #3
    mtbr member
    Reputation: Joules's Avatar
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    A Magura QM-6 will do it. So will others, who's part number I don't know off the top of my head

    Magura QM Brake Adapters at Price Point

  4. #4
    Bike Virgin
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    I've already purchased an adapter to use a 203mm rotor on the front. I'm afraid that if I purchase a 180mm post to post adapter for the rear it will be too big since the posts are sized for 160mm rotors.

  5. #5
    Nouveau Retrogrouch SuperModerator
    Reputation: shiggy's Avatar
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    Quote Originally Posted by Treebumper View Post
    I've already purchased an adapter to use a 203mm rotor on the front. I'm afraid that if I purchase a 180mm post to post adapter for the rear it will be too big since the posts are sized for 160mm rotors.
    There is nothing to be afraid of.
    Just move the 180mm post mount bracket from the front to the rear.
    mtbtires.com
    The trouble with common sense is it is no longer common

  6. #6
    Bike Virgin
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    It can't be that easy, can it?

  7. #7
    Nouveau Retrogrouch SuperModerator
    Reputation: shiggy's Avatar
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    Quote Originally Posted by Treebumper View Post
    It can't be that easy, can it?
    You can make it harder if you want.

    Do you have a rear-specific 180mm rotor?
    mtbtires.com
    The trouble with common sense is it is no longer common

  8. #8
    Bike Virgin
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    No, I assumed that centerlock rotors could be used on the front or rear. It is an SM-RT53m rotor, if it helps.

  9. #9
    Nouveau Retrogrouch SuperModerator
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    Quote Originally Posted by Treebumper View Post
    No, I assumed that centerlock rotors could be used on the front or rear. It is an SM-RT53m rotor, if it helps.
    They can, just like the post mount bracket.

    You are overthinking this, especially since you already have the parts you need.
    mtbtires.com
    The trouble with common sense is it is no longer common

  10. #10
    Bike Virgin
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    I'm waiting on the adapter for the front, should be here Wednesday.

    Thanks for the help.

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