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  1. #1
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    Crankset Question

    Is there any advantage from going from Shimano FCM311 Octalink 48/38/28t
    to a SLX FC-M660 24/32/42T
    nice buy on Jensen
    http://www.jensonusa.com/Shimano-SLX...t?SSAID=314743

    will it work on Misceo?
    http://www.raleighusa.com/bikes/life...misceo-2-0-13/

  2. #2
    coprolite fietsbob's Avatar
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    Do the math on the ratios,

    you can get the low , a 24t by just changing that one chainring, the 28t.

  3. #3
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    not to sure what your looking to accomplish but that is pure mountain bike gearing, not the best choice for street use. the swap might also require a different front derailleur.

  4. #4
    PatronSaintOfDiscBrakes dynaryder's Avatar
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    That crankset is for 10spd so the rings won't mesh properly with your 8spd chain. You'll get accelerated wear on the chain and rings,and the shifting could be sloppy to boot.

    For a whole lot less money/trouble you can just swap your small ring for a 24t.

    C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport/Qualifier,Dahon Speed Pro TT,Brompton S6L

  5. #5
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    OK not what I want to do. Still learning that's why I ask.

  6. #6
    Certified Bike Brat Burton's Avatar
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    Actually thats a 10 speed Dyna Sys crankset and Dyna Sys is only compatible with Dyna Sys - do you're looking at changing your whole drivetrain, and the gear rations STILL wouldn't be ideal for on-road use.

    Don't think there's much to do with your current crankset either. As far as I know the chainrings are swaged on that model.

  7. #7
    PatronSaintOfDiscBrakes dynaryder's Avatar
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    There are def chainring bolts there. As for Dyna-Sys,it's Shimano's latest 'innovation';it's supposed to play better with rear suspension bikes. I haven't read anything that says it can't work with other 10spd MTB bits.

    C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport/Qualifier,Dahon Speed Pro TT,Brompton S6L

  8. #8
    S'Cruzer pierce's Avatar
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    that FCM311 is a riveted triple.

    http://techdocs.shimano.com/media/te...9830637963.pdf

    no separate sprockets


    anyways, your low gear now is 28:32, which is way less than 1:1, suitable for anything this side of tree climbing. why do you want lower gear ratios?

  9. #9
    coprolite fietsbob's Avatar
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    Consider instead a proper Compact MTB triple 44, 32, 22, so you get a respectable low..

  10. #10
    S'Cruzer pierce's Avatar
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    on a road oriented hybrid? 22:32 would be an insanely low gear ratio (the maceo has a 11-32 cassette). with a 700x38 tire, you'd be doing like 5MPH when spinning 90 RPM. thats 18 gear-inches.

    http://home.earthlink.net/~mike.sher...no&TITLE=&HL=1

  11. #11
    Certified Bike Brat Burton's Avatar
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    Quote Originally Posted by dynaryder View Post
    There are def chainring bolts there. As for Dyna-Sys,it's Shimano's latest 'innovation';it's supposed to play better with rear suspension bikes. I haven't read anything that says it can't work with other 10spd MTB bits.
    You need to read more.

    And this year the DuraAce lineup has been completely redesigned and THAT drivetrain is also compatible with nothing else.
    Last edited by Burton; 03-07-13 at 12:22 AM.

  12. #12
    PatronSaintOfDiscBrakes dynaryder's Avatar
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    Quote Originally Posted by pierce View Post
    that FCM311 is a riveted triple.
    Meh,bad pic.

    C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport/Qualifier,Dahon Speed Pro TT,Brompton S6L

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