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  1. #1
    Nervous Descender
    Reputation: Adirondack Blues's Avatar
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    IS disc brake adapter for Trek w/ 43mm? dropout mount

    Does anyone know where I can get an adapter that will allow me to mount an IS Avid mechanical caliper on the Trek 43mm (I think) dropout mount? Trek's website was not very helpful, other than stating that an adapter was available and to contact my dealer. Frame is 2002 Trek 4900. Thanks in advance.

  2. #2
    Frequent Crasher
    Reputation: SuperBad's Avatar
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    Try woodman .. http://www.woodmancomponents.com/pro.../vrxadapt.html I think that is what you need.
    SB

  3. #3
    I like pie
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    SuperBad - I think that's the wrong one. That one looks like it mounts to vertical holes on the chainstay, but mine doesn't have such. My frame should be similar to Adirondacks, (2002 4300) and I've found that there is an adapter available from Trek to fit discs to these frames. It's a stock part, since some Treks come with rear discs.

    I asked at my local Trek shop today, they said it's about $15-$20, but they don't keep it in stock.

  4. #4
    Nervous Descender
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    Quote Originally Posted by RidgeRunner
    SuperBad - I think that's the wrong one. That one looks like it mounts to vertical holes on the chainstay, but mine doesn't have such. My frame should be similar to Adirondacks, (2002 4300) and I've found that there is an adapter available from Trek to fit discs to these frames. It's a stock part, since some Treks come with rear discs.

    I asked at my local Trek shop today, they said it's about $15-$20, but they don't keep it in stock.
    Thanks- I figured it out. Got a Trek Disc-O mount special order from LBS.

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