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  1. #1
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    New question here. Rockhopper 29er Derailleur Upgrade

    Hey guys/gals,
    my rear derailleur is giving me problems and I verified it by replacing it with a friends and everything was fine. I am wondering if I should just replace it with the same model or just replace both the front and rear with an upgrade if it would make a difference.

    Let me know what your thoughts are and any recommendations on parts.
    Here's what is currently on the bike. Thanks


    Crankset
    Shimano FC-M430-8, Octalink spline
    Cassette
    Shimano HG30, 9-speed, 11-34t
    Rear Derailleur
    Shimano Alivio, 9sp direct mount Long cage
    Front Derailleur
    Shimano Alivo, 34.9mm clamp, top swing, dual pull
    Shifters Shimano Alivo SL, rapid fire trigger
    2011 Rockhopper Comp 29er
    2011 Myka HT Disc (wife)

  2. #2
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    If you have some money in your bank I would upgrade it. Nine speed is a bit tricky to find in XT and SLX.

    Shimano SLX M662 Shadow 9 Speed Rear Mech | Chain Reaction Cycles

    Here is one that would be nice.

    New Shimano SLX SL M660 MTB Shift Shifters 3x9 27 Speeds Rapidfire Plus Dynasys | eBay

    These would help the snap of you shifting too.

    Mark
    2012 XXL Carve Expert

  3. #3
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    Would I need to replace the front derailleur also if I used the M662?

    Those shifters look good,so basically I can use the M662 with my current shifters,but the M660 shifters would give me better shifts?
    2011 Rockhopper Comp 29er
    2011 Myka HT Disc (wife)

  4. #4
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    You can. However, SLX shifting is much crisper and faster. Your shifters are about the bottom of the line and feel numb vs SLX.

    Mark
    2012 XXL Carve Expert

  5. #5
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    Also check your hanger and cable adjustment first. LBS should be able to tell if it is ok. I have not seen to many true RD failures.

    Mark
    2012 XXL Carve Expert

  6. #6
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    Ok,ill look shifters. Which model of SLX should I use on the
    front?

    I have adjusted my rear derailleur many times trying to fix it without any success. Put a borrowed RD on and just a little adjustment made it all work ok. Not sure what is wrong with my old one.
    Last edited by NC-Biker; 08-30-2013 at 02:37 PM.
    2011 Rockhopper Comp 29er
    2011 Myka HT Disc (wife)

  7. #7
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    M660, the ones I linked to will work. If you search around a bit you might get a better price. Good luck.

    Mark
    2012 XXL Carve Expert

  8. #8
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    2011 Rockhopper Comp 29er
    2011 Myka HT Disc (wife)

  9. #9
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    Quote Originally Posted by NC-Biker View Post
    Ok,ill look shifters. Which model of SLX should I use on the
    front?
    Sorry I did not read that one correctly. You are right, that is the correct RD (please verify the diameter). However, you might not notice much difference with the SLX FD over the one you have now. But it will match the rest of your bike. SLX brakes are very nice and you will noticed a huge difference over you current brakes. The XTR one that I have is much better then the SLX, XT due to the thick base and stiffness. It pulls from the bottom rather then the top. But they are about $125

    Mark
    Attached Thumbnails Attached Thumbnails Rockhopper 29er Derailleur Upgrade-xtr1a.jpg  

    Rockhopper 29er Derailleur Upgrade-xtr1.jpg  

    2012 XXL Carve Expert

  10. #10
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    I figure if I'm going to replace the rear,I should just replace the front so it will all match with the shifters.
    2011 Rockhopper Comp 29er
    2011 Myka HT Disc (wife)

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