450 big boy springs
  • 450Kiwi
    Posts:3
    Joined:Mon Feb 13, 2012 12:08 am
    450 big boy springs

    by 450Kiwi » Mon Feb 13, 2012 12:29 am

    Hi everyone.
    Been lurking here for a while now, reading and learning.
    Finally come into the light as I can’t find an answer



    Want to put stiffer springs f/r in my 450x

    Im 6'2" and 230 pound

    I have been to R/T Suspension And used there calculator to find what I need.

    How do I use this information to buy of this site (CRFs ONLY).
    Looking at the Factory Connection Fork Pressure Spring but the weights of compression are way way different to what R/T says.

    From R/T Suspension calculator
    FRONT FORK SPRINGS
    Recommended Fork Spring Rate: 0.526 kg/mm

    Avalable from CRFs ONLY
    SHOWA 1.01, 1.15, 1.42, 1.61, 1.76, 1.9 kg/mm

    Rear seems ok
    REAR SHOCK SPRINGS
    Recommended Shock Spring Rate: 6 kg/mm
    And 5.9 or 6.1 kg/mm avalable
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    crfsonly
    Owner
    Posts:9651
    Joined:Thu Apr 01, 2004 3:45 pm

    by crfsonly » Mon Feb 13, 2012 12:55 pm

    the recommendation is a best guess and won't match up exactly to spring rates available. so, get as close as you can and determine if you want them to be above or below the recommendation. remember the springs are just to keep the suspension from sagging into the stroke beyond the designed race sag.

    ken
    OEM Parts for Honda - Yamaha - Suzuki - Kawasaki: http://yeltrik.com
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  • 450Kiwi
    Posts:3
    Joined:Mon Feb 13, 2012 12:08 am

    by 450Kiwi » Mon Feb 13, 2012 1:13 pm

    Hi Ken

    I understand that the springs keeps bike positioned for optimum use of shock travel, adjustment of spring to suit live load.

    Front shocks
    What I cant work out is the relationship between R/T suspensions weight recommendation at 0.526kg with their range going from 0.38kg to 0.52kg. R/T say 0.45kg is standard.
    And your spring rates
    The lightest spring you sell is 1.01kg going all the way to 1.9kg

    Rear shock weights seem to be the same. Your site compared to R/T Suspensions spring calculator.

    Thanks Neil
    Last edited by 450Kiwi on Mon Feb 13, 2012 1:18 pm, edited 1 time in total.
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    crfsonly
    Owner
    Posts:9651
    Joined:Thu Apr 01, 2004 3:45 pm

    by crfsonly » Mon Feb 13, 2012 1:17 pm

    i believe you are looking at the Fork Pressure Spring Set and not the Fork Springs found here:

    http://www.crfsonly.com/catalog/product ... ts_id/1906

    ken
    OEM Parts for Honda - Yamaha - Suzuki - Kawasaki: http://yeltrik.com
    _________________
    CRF Parts and Accessories: http://crfsonly.com
  • 450Kiwi
    Posts:3
    Joined:Mon Feb 13, 2012 12:08 am

    by 450Kiwi » Mon Feb 13, 2012 1:22 pm

    My bad :oops:

    Did you just add that to the 450x page must be blind if I didnt see it before
  • User avatar
    crfsonly
    Owner
    Posts:9651
    Joined:Thu Apr 01, 2004 3:45 pm

    by crfsonly » Mon Feb 13, 2012 1:25 pm

    no worries. they have been in the 450X suspension category.

    ken
    OEM Parts for Honda - Yamaha - Suzuki - Kawasaki: http://yeltrik.com
    _________________
    CRF Parts and Accessories: http://crfsonly.com

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