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  1. #1
    mtbr member
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    Jun 2006
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    62

    Can I add rear derailer to Specialized 20" Hardrock coaster?

    Are the appropriate mounts there? Thanks

  2. #2
    mtbr member
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    Join Date
    Nov 2006
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    194
    Yes and no. The spacing on those bike is only 110mm. To use a cassette type wheel you need 135mm. However you could get a hub from Profile that will fit the 110mm spacing and allow you to run up to 3 spds and it comes with derailleur hanger. I can't seem to find it on there site anymore so you will need to call or email them.

    Cheers

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