Heavier spring for 640 adventure?

Discussion in 'Thumpers' started by Converted Soul, Mar 29, 2005.

  1. Converted Soul

    Converted Soul On the search dude

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    I'm loading my 2003 640 adventure up for a trip trough Africa but wonder if it is wise to fit a stronger spring to the rear. It now has an 70-260 spring (meaning 70 kilo with 260 length).

    I fitted the Touratech alu canisters (empty) and fixed a spare rear tire to the rear of the bike and already the bike drops way low to the ground.
    #1
  2. Buckster

    Buckster Banned

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    I'm fitting a stronger one to mine, they are readily available from your local WP importer. I am upping the springs in the forks to.
    #2
  3. Stobie

    Stobie Mr. Motivated

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    What rates are you going with Buckster, and what do you weigh? :ear

    I weigh 215# (down from 240 and still dropping), and I just received a set of .48 for the front and 8.0/260 for the rear. Almost went with .50 on front, but several suspension gurus recommended against it. Hopefully I'll install them this weekend.
    #3
  4. Mack

    Mack Gone, but never forgotten. RIP, Mack...

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    Stobie, any line on who has the .50's? If I can find those, I will order them for the 950 and move the OEM .48's from the 950 to the 640.
    #4
  5. Hipster

    Hipster Long timer

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    WP's stiffest spring is a 0.48, if you need anything stiffer you'll have to go with an aftermarket spring such as Eiback. Check out http://www.racetech.com/ for further infomation.
    #5
  6. meat popsicle

    meat popsicle Ignostic

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    If you are going to Africa on your MC then we have no sympathy for you and your problems... where's the jealousy smiley? :lol3

    Anyhow, have a great trip and please send postcards! You doing a prelim writeup or anything? :ear

    PS - the stock Adv setup is for a 165lb rider so anyone who is north of that and loading gear on should definately beef up the shock and forks. :D
    #6
  7. SRG

    SRG SRG

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    Good thread. I have been thinking about heavier springs for the froks of my '02 640 Adv. - sound like the 48's are the right wt. for me. These would be the same as the the stock springs from a 950?

    SRG
    #7
  8. Stobie

    Stobie Mr. Motivated

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    Call Brad Lowe at Lowe's Racing: 989-288-6068. He has no website that I can find, and you might have to leave him a message for a callback, but he probably has what you want on the shelf. From what I understand, he stocks fork springs at least up to .52, and rear shock springs up to 11.0. The rear springs are actually for the PDS shock (but linear instead of progressive), so the ID is slightly larger (63mm v 59mm), but the length is the same, and fitment is no problem.

    Also good news is that the fork springs are $80, and the rear spring is $80, include $10 shipping, and I'm respringing both ends for $170. :deal I ordered them Thursday, got'em yesterday. :thumb
    #8
  9. meat popsicle

    meat popsicle Ignostic

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    your fitting an 11.0 rear?!? :huh i'm thinking bursitis in a month... :lol3
    #9
  10. Converted Soul

    Converted Soul On the search dude

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    I'll make sure that you envy me even more after you see the pictures and story that's coming in about one to two months time.
    The plan is to go through Marocco, Mauritenie, Senegal, Mali, Burkina Fasso to Ghana and then shipping the Adventure back by boot from Accra.

    I'm going for the 85 kilo rear spring (does somebody know how to convert that into imperial measurements?)
    #10
  11. GODSPEED

    GODSPEED finger lickin' good

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    Conversion Link



    187.39#
    #11
  12. Buckster

    Buckster Banned

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    In weigh 200-205 and am going with a 80/250 which is right for my weight allowing for riding gear and giving space for winding in some more pre-load to allow for luggage.
    #12
  13. Stobie

    Stobie Mr. Motivated

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    Reading comprehension, Meaty. :rolleyes
    #13
  14. MotoMike

    MotoMike Washed Up Desert Racer

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    I just recently had my suspension done. ESP in La Cresenta, CA. did the work. I weigh 225, the spring they used in the rear is a Eibach 0900,225,0475. I believe they had to machine a spacer as well.
    #14
  15. meat popsicle

    meat popsicle Ignostic

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    (giggle) sorry couldn't help myself...
    #15
  16. meat popsicle

    meat popsicle Ignostic

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    its official now, i hate you.

    have a rockin trip CS! :ricky
    #16
  17. cugino pegaso

    cugino pegaso Been here awhile

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    Yes, you need a 80-260, and I just happen to have one for sale.

    $100 delivered any where in the lower 48.
    I take paypal.

    I used it briefly on my Duke II while I was roadracing (ended up using a 90-260 which I already sold), and I no longer race, or need it.
    #17
  18. Tim

    Tim Long timer

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    You can't afford new springs mister, you are suposed to be saving up your $$ to buy Euros!
    #18
  19. Buckster

    Buckster Banned

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    I now have an 80/250 sat here waiting to go on.
    #19
  20. cugino pegaso

    cugino pegaso Been here awhile

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    oops... I should pay more attention. Since your in the Netherlands, visit/contact WP...
    #20