stm motard slipper clutch spring rates?
  • abmjl
    Posts: 32
    Joined: Fri Jul 20, 2007 8:08 pm

    stm motard slipper clutch spring rates?

    by abmjl » Sun Jan 17, 2010 1:03 pm

    hi Ken,i bought a stm slipper cluthch for 450r 04 motard off you a couple of years ago # 0F3OR230B1100MX n am very happy with. ive have somehow broken the secondary spring rated 50kg #0F3SR540B140006. thing bout replacing it with a 40kg spring now. wots your thoughts?
    judging by the clutch part # i think the springs mite be rated for MX use, do you know wot the SM spring rates are for these cluthchs? the primary spring i have is 160kg.
    thanks
    Jason.
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    AgentSmith
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    by AgentSmith » Sun Jan 17, 2010 1:53 pm

    Going to a lower rated secondary spring would only lower the amount of engine braking.

    It shouldn't affect acceleration as that's the primary springs role.

    Are you sure that you've got a 50kg in there?? The 85mm that you describe is rated at 40kg...
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  • abmjl
    Posts: 32
    Joined: Fri Jul 20, 2007 8:08 pm

    by abmjl » Sun Jan 17, 2010 2:27 pm

    yes the spring is 85mm 50kg im looking at it now n just to conferm the part # on the side of it is 0F3SR540B140006. n the clutch part # is F30R230B1100MX.
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    AgentSmith
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    by AgentSmith » Sun Jan 17, 2010 2:43 pm

    Running a 40kg will just reduce the engine braking characteristics of the clutch. The replacements run about $ 62.00.

    They have them all flavors for fine tuning from 30kg to 80kg.
    "Make a man a fire and he'll be warm for a day.
    Light a man on fire and he'll be warm for the rest of his life."
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  • abmjl
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    by abmjl » Sun Jan 17, 2010 2:46 pm

    do you guys sale the individual springs?
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    AgentSmith
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    by AgentSmith » Sun Jan 17, 2010 2:54 pm

    I don't know if Ken stocks them, but he should be able to get them for you. Blast him an e-mail to ken at crfsonly dot com and he'll hook you up.
    "Make a man a fire and he'll be warm for a day.
    Light a man on fire and he'll be warm for the rest of his life."
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  • abmjl
    Posts: 32
    Joined: Fri Jul 20, 2007 8:08 pm

    by abmjl » Sun Jan 17, 2010 2:58 pm

    will do, cheers man.

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