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  1. #1
    mtbr member
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    Feb 2006
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    Need help converting my Marta 160mm SL's to 180mm.

    I'm having an issue converting my front Marta SL brake rotor from 160 to 180. I'm using a #16adapter and a Marta 180 rotor. The problem I'm having is that when I seat the wheel back in the dropout and close the quick release, the rotor is topping out in the caliper and the wheel doesn't turn. I know the adapter is installed correctly and the rotor the is a180mm...do I possibly have the wrong adapter or is the adapater Front brake/Rear brake specific? Any ideas on what the prob may be?

    Also, I have a 2007 Fox TALAS 140 fork.

    Any help would be greatly appreciated.


    Thanks all.

  2. #2
    ups and downs
    Reputation: rockyuphill's Avatar
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    Nov 2004
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    13,925
    The #16 adapter is specific to the caliper with the short lower leg when used on the front.

    The detail from the Magura website is this thread

  3. #3
    flow where ever you go
    Reputation: noshortcuts's Avatar
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    Nov 2005
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    Quote Originally Posted by RACERX70
    I'm having an issue converting my front Marta SL brake rotor from 160 to 180. I'm using a #16adapter and a Marta 180 rotor. The problem I'm having is that when I seat the wheel back in the dropout and close the quick release, the rotor is topping out in the caliper and the wheel doesn't turn. I know the adapter is installed correctly and the rotor the is a180mm...do I possibly have the wrong adapter or is the adapater Front brake/Rear brake specific? Any ideas on what the prob may be?

    Also, I have a 2007 Fox TALAS 140 fork.

    Any help would be greatly appreciated.


    Thanks all.
    I dealt with the same thing using Marta SL on a Pace Fighter fork. The fix is to take a drill and make one bolt hole larger in the #16 and then pull the brake out as you tighten it down. Doesn't sound great, but it works. I've run many hundreds of miles after that fix with no problems. I believe I drilled the lower (non-threaded) hole. I can imagine needed to do both non-threaded holes a little. Maybe you can judge by where it is hitting an where the #16 clamp will swing once you drill.

    "I must not be crazy because I'm seriously questioning my sanity"

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