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  1. #1
    Senior Member smurray's Avatar
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    Sugino Messenger chainring bolts?

    Anyone know what the torque specs are for the Sugino Messenger crankset? I have a Park Tool torque guide but I'm not sure whether the bolts are steel or aluminum.

    UPDATE

    Looks like these are the bolts that came with my crankset. It lists the nut as steel and the bolt as duralumin. Not sure whether that means I should go by the steel torque specs or the aluminum. I'm assuming aluminum to play it safe.

    UPDATE 2

    Torqued to 70 inch lbs and didn't damage the bolts. Gonna keep it there for now.
    Last edited by smurray; 07-18-13 at 02:09 PM.

  2. #2
    Senior Member seau grateau's Avatar
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    Just tighten them.
    Quote Originally Posted by adriano View Post
    thanckx.
    Quote Originally Posted by Nagrom_ View Post
    "I made love to your mother dozens of times last week, and she doesnt know what a worn chain ring looks like"

  3. #3
    Veteran Bastard Scrodzilla's Avatar
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    Seriously. You're only going to be able to tighten them so much holding the backs in place with a chainring bolt spanner tool anyway.

  4. #4
    gouch pad bones_mcbones's Avatar
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    Duraluminum... .I'm shocked, and awed.
    ****tinginbuckets.com

  5. #5
    Morton Nagrom_'s Avatar
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    When in doubt, Rockwell hardness test (or a magnet).

    Wait... why didnt that guy hella long ago with the ****ty mtb just use a magnet? what a dick.
    Quote Originally Posted by seau grateau View Post
    No offense but you're an idiot.
    PedalRoom

  6. #6
    Veteran Bastard Scrodzilla's Avatar
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    His magnets were all being stored in a time capsule for later use.

  7. #7
    pro in someone's theory prooftheory's Avatar
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    Quote Originally Posted by Nagrom_ View Post
    what a dick.
    You just summarized that whole thread.

  8. #8
    Newbie
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    The way to tell if the bolts are steel or aluminum is by putting something magnetic to it. If the bolt is magnetic, it is steel and if it is not, then it is aluminum. The torque for a steel crank bolt is 9 to 11 nM. No idea what torque aluminum bolts are.

  9. #9
    Veteran Racer TejanoTrackie's Avatar
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    Quote Originally Posted by TeenageMechanic View Post
    The way to tell if the bolts are steel or aluminum is by putting something magnetic to it. If the bolt is magnetic, it is steel and if it is not, then it is aluminum.
    ...or stainless steel...or titanium are also non-magnetic. Anyways, I hate using aluminum for any bolts or screws. Even if the threads don't strip out, then the hex sockets will and the only ones that are reliable use a Torx key to tighten them. The weight savings are negligible.
    What, Me Worry? - Alfred E. Neuman

    Quote Originally Posted by Dcv View Post
    I'd like to think i have as much money as brains.

  10. #10
    Morton Nagrom_'s Avatar
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    Pedantic metal guy to the rescue.
    Quote Originally Posted by seau grateau View Post
    No offense but you're an idiot.
    PedalRoom

  11. #11
    gouch pad bones_mcbones's Avatar
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    Quote Originally Posted by TejanoTrackie View Post
    ...or stainless steel...or titanium are also non-magnetic. Anyways, I hate using aluminum for any bolts or screws. Even if the threads don't strip out, then the hex sockets will and the only ones that are reliable use a Torx key to tighten them. The weight savings are negligible.
    that was my first thought about aluminum bolts, but this is duraliminum!!!!!!! Which I have no experience with.
    ****tinginbuckets.com

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