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Progressive softtail shocks

Discussion in 'Brakes / Suspension' started by liferider, Mar 21, 2012.

  1. liferider

    liferider Guru

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    I talked to Thunder Cycles about air suspention on my 04 Chopper. They said, if its not a show bike don't use it. Use Progressive heavy duty spring shock. Does anyone run these?????
     
  2. bearman

    bearman Active Member

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    Just found out I have these on my 06 Mastiff, dont know what model the shocks are, but I susspect 422. Found this thread looking for how to adjust them. I went to the Progressive website and found the instructions.
     
    #2 bearman, Mar 22, 2012
    Last edited: May 25, 2012
  3. bearman

    bearman Active Member

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    [​IMG]
    these are mine. they were adjusted all the way stiff and all the way up. didn't move when I sat on the bike. put three turns on the preload, and 2 turns on the height adjustment, now sits lower and will move when bouncing on the seat. I weigh bout 205 lbs. raining today and supposed to rain next 3 days, so no riding yet to see how it changes the ride. Before, I thought it rode pretty good, then I put proper air in rear tire and it rode like a rigid.
     
  4. bearman

    bearman Active Member

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    as a follow up - scooter rides so much better and looks better too. I like that I can adjust the height separately from the spring firmness.
     
  5. liferider

    liferider Guru

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    I weigh 242pounds. I went with the heavy duty. I ain't little:roll:
     

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  6. bearman

    bearman Active Member

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    I don't know if mine are the regular or heavy duty, but I suspect mine are the regular. I'm at three turns down from max on the preload and If I rode solo all the time I would probably go down another turn, but I put 450 miles with the girlfriend on the back (about 120lbs + my 205lbs) during Panama City Bike Rally and only bottomed twice, and that was hitting large bumps going into parking lots, going slow. I think most people could get by with either regular or heavy duty because they are adjustable :)
     
  7. standuprick

    standuprick Active Member

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    Heavy duty is just a stronger spring. You can find out by the model number of the shock.
     
  8. liferider

    liferider Guru

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    The heavy duty ones I got are ajustable. There on the lowest setting. This bike has never ridden this well!!!! I am very happy!!!!!
     
  9. mittens

    mittens Active Member

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    I know this is a old thread. BUT

    Just to confirm the 422 shocks do fit? a chopper softail? With out any spacers?

    I have 2004 BDM Chopper and the factory shocks and the only have maybe an inch in-between the 2 cylinders, and the Progressive 422 seam to have fatter looking "cans" so I was worried about having room to mount them both up.

    The pic above shows them close but fitting.
     
  10. bearman

    bearman Active Member

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    I believe all the Big Dog soft-tails use the same shock setup. So if it has the big “eye” mounts (like in the above pic) on both ends, then they should fit.
     
  11. mittens

    mittens Active Member

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    Well I ask cause another forum member has a K9, and he said they did not fit his bike...

    Does a K9 have different suspension from a softail chopper?
     
  12. liferider

    liferider Guru

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    We have choppers not K9's. I know they fit the chopper.
     
  13. mittens

    mittens Active Member

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    Well that at least answers the question..



    BUT still curious whats so different on a K9 that they dont fit.
     
  14. KaptinAmerika

    KaptinAmerika Well-Known Member

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    The 04 and down bikes have softail style primaries that hang outside of the frame
    All 05 and newer bikes run the Baker DSSC primary which tucks inside the frame slightly.
    This reduces the amount of space available under the frame for shocks.
     
  15. mittens

    mittens Active Member

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    and when that happens the bigger cans from the 422s dont fit i am betting

    thanks for the help!
     
  16. KaptinAmerika

    KaptinAmerika Well-Known Member

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    I just got off the phone with progressive
    The 422s have a 3" outside diameter
    The left shock on a K9 is 2" in diameter and the max you might get in is 2.25" due to the transmission mount traversing at an angle right past the shock in order to clear the primary.
    Therefore I see no possible way that a set of 422 shocks will fit under a K9.
     
  17. mittens

    mittens Active Member

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    But since I have the 2004 LSD I have room like the few guys in this thread?

    Thanks for the clarification of why it works on some and not others
     
  18. liferider

    liferider Guru

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    I'll photo my bike under neither and post it!
     
  19. KaptinAmerika

    KaptinAmerika Well-Known Member

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    You should be fine with a 2004 as long as it is left side drive. 2005 and up are the issue.
    As a side note I also inquired about a shock with a 2.25 outside diameter or smaller and Progressive said they no longer make one that size.
     
  20. BBChopper

    BBChopper Supports 2 Disabled Vets
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    They defiantly wont fit 05 and up Chopper, don't ask me how I know!:rolleyes:
     

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