CODY WEBB SWITCHES TO KTM’S PDS SUSPENSION SETUP?

Discussion in 'KTM (Including Late Model Husky, and Husaberg)' started by Admin, Apr 27, 2017.

  1. Admin

    Admin Administrator Staff Member
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    CODY WEBB SWITCHES TO KTM’S PDS SUSPENSION SETUP?

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    It looks like former AMA EnduroCross Champion Cody Webb has moved from linkage to a non-linkage PDS suspension setup for 2017.
    The KTM rider posted some cool slow motion footage of him during a suspension test and the eagle eyed among us will have spotted the lack of a linkage setup.

    Webb raced with linkage suspension in last year’s endurocross series, so it will be interesting to see if he makes a full-time switch to PDS this year because in the USA KTM’s production four-stroke enduro bikes are not PDS equipped.
     
  2. Admin

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    I find it interesting with all the hate in the world for the PDS, that Cody prefers it to the linkage.

    I was always a fan of the PDS (once valved correctly) for it's simplicity and lack of rock exposure. I wouldn't mind seeing something similar on the Beta ....but I'm not holding my breath for that!

    I always thought it was the US market pushing KTM towards linkage as the PDS is still quite popular in Europe
     
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  3. GMP

    GMP A level Member

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    Yeah but when you look at the scope of EnduroX its pretty narrow. Same terrain and no real surprises. Not so much with other off road. plus the KTM link is way lower than others. If Beta goes PDS I'll be on a YZ.
     
  4. Admin

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    NOT IF IT WORKS! anyway..... you've been looking for a reason to get a YZ for a long time....LOL
     
  5. GMP

    GMP A level Member

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    It does work, just not in the range a linkage does with the same setup. I can't argue with the fact that I just like and ride a lot better with a linkage bike. Nothing wrong with a YZ for racing. Not the best for our stuff though. I think what I have now with the changes is the best compromise possible.
     
  6. Moto7man

    Moto7man A level Member

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    I was at the Tennessee Knockout last year and Cody was smoking everybody and he was riding a PDS KTM at the time. He was able to climb over a lot of boulders because of the increased clearance.
     
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  7. GMP

    GMP A level Member

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    Two extremes of clearance, KTM link vs. PDS. When Webb was with Beta, he also ran OC forks instead of the Zoke 48s in at least one TKO I've seen. Very different specialized setups.

    I tend to think PDS would have been a lot more advanced if KTM didn't screw Ohlins, the original PDS developer, when they bought WP 20 years ago. I had an Ohlins PDS shock on a Cannondale back in '02. Even with the rigid aluminum frame and extra weight, that was a far better rear suspension than any WP PDS I've tried, even years later.
     
  8. jaysplace408

    jaysplace408 B level Member

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    I never had any issues with my PDS once it was set up.
     
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  9. Hawaiidirtrider

    Hawaiidirtrider Major Contributor!

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    Yea I don't know.. I figure both link and no link are good if set up right. The link gets in the way crossing boulders and logs etc.. but it's not a big deal.. You just ride it.. I have heard so many bitch about pds and I have been riding linked bikes in recent years so maybe I'm just pleasantly ignorant.
     
  10. Admin

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    I always loved the simplicity of PDS and thought they worked just fine for trail riding with just a revavle.

    I have no complaints about linkage, other than having to protect it and maintain it. but I guess if I was a "racer" I might feel different. My real complaint with the PDS bikes was that they were too tall!
     
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  11. GMP

    GMP A level Member

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    PDS has been around for 20 years now. I don't think its about being a trail rider vs. a racer, more about a single setup crossing over and handling different terrain. Serious racers and pros will have a different shock setup for different courses so its a wash, but for us its different. Forget about being a trail rider or racer for a minute. Think about being a project manager for any one of the off road bike mfgs. besides KTM. A PDS system is cheaper to produce, once the design is finalized. Less parts, less weight too. If it worked as well or better overall, I would think someone would have taken advantage of this fact over the last 20 years. Also, the shock is much more of a PIA to deal with from a service/valving perspective. No big deal if you send it out but if you DIY for whatever reason it requires more equipment. That said, it might be interesting to see another modern take on PDS besides KTM/WP.
     
  12. Darkside

    Darkside C level Member

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    When BMW owned husky for a few short years their 449 had a unique linkage above the swingarm. Too bad that wasn't developed further

    [​IMG]
     
  13. GMP

    GMP A level Member

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    I remember my old '83 YZ490 had a similar top mount linkage. Back then in the evolution days of long travel/single shock every brand was quite different as they were figuring out what geometry worked. Now if you notice, its pretty much evolved into one design, with absolute dimensions being the variables across brands and bikes.
     
  14. Darkside

    Darkside C level Member

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    I imagine a major drawback for the above the swingarm linkage is that the shock is a lot shorter. Maybe it restricts oil volume?
     
  15. Admin

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    even if linkage is slightly better some situations, I can appreciate the simplicity of PDS!
     
  16. GMP

    GMP A level Member

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    The average axel/shock travel ratio becomes higher and the shock has to be valved stiffer to control the action. Stiff spring also. This is(was) also true of PDS, plus the second piston and needle system that they screwed around with for years getting it to flow enough oil. If I'm correct the shaft is larger in dia to handle the forces as well. Too much going on. A basic linkage shock is much easier to deal with in every way, especially service and tuning.

    Do you guys know how to pull your Beta shock ? Almost as easy as PDS!
     
  17. jaysplace408

    jaysplace408 B level Member

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    I figure it out also,
     

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