2013 F800GS forks and rims

Discussion in 'Parallel Universe' started by ilyaon, Sep 26, 2012.

  1. LukasM

    LukasM Long timer

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    I don't think it's going to be that easy to just machine the BMW feet to accept the WP sliders and still be sure that the remaining wall thickness is safe enough.... :eek1 You are welcome to be the first to try though. :deal

    If you are going to have some new triples machined anyway, you might as well go the whole way by keeping the KTM feet and replacing the BMW wheel with something better.

    21" and that wide doesn't make any sense because they don't handle well on the street and then dent easily when you go off road as people have noted. So either get a narrower and stronger 21" rim if you ride harder off road, or a 19" that has better street manners and still works ok on gravel and two track type riding.

    [​IMG]
    #61
  2. Hamish71

    Hamish71 Been here awhile

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    Did I mention that I have a 19" woody's tubless that I use mainly for on road (conti attacks) , and occasionally for touring (K60s), and keep the oem set strictly for off road? Instead of keep the bmw wheel, I should have said, keep the bmw calipers and abs.
    #62
  3. LukasM

    LukasM Long timer

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    Not sure if the stock wheel would still fit width wise as the KTM triples are narrower, and it uses a 20mm axle vs. the KTMs 30mm. What's the disc flange to disc flange and the wheel bearing to wheel bearing width on the stock hub?

    But it's definitely possible to keep the ABS working with a full front end swap. It does on all the bikes I have converted to WPs, either with dual BMW/KTM Brembos or even a single 4 piston Motomaster.


    [​IMG]
    #63
  4. Hamish71

    Hamish71 Been here awhile

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    I am obviously talking to the right guy then. I am not happy with my 45mm marzocchis...i dont want to change to the wp 43mm on the new bike. I want to put wp 48mm on. i want to keep abs. Id prefer to keep the bmw twin brembo calipres.

    What are my options.?
    #64
  5. LukasM

    LukasM Long timer

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    If you get me those measurements from the BMW hub I should be able to tell you whether it's possible to keep your current wheels with the way I set up these swaps. But it will still require a custom axle and probably wheel spacers.

    If you are willing to have custom triple clamps, caliper mounts, axle, fender mounts, etc machined then of course everything is possible.

    Emig should be able to provide those parts, they just won't be cheap and will only work with his damper and not a Scotts.
    #65
  6. Motorfiets

    Motorfiets Long timer

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    you definitely are

    :D
    #66
  7. PatrickM

    PatrickM Been here awhile

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    Time... Sigh. I keep in the back of my mind this thread. My calipers (for reloading, lol) are in one city and my tools to work on the bike/car are in another.

    Ideas as to: How deep is the cap? How may threads do you need me to measure? What are the torque specs to tighten her back up?
    #67
  8. LukasM

    LukasM Long timer

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    I just took some measurements from a 2010 BMW fork and an adjustable KTM WP cartridge.

    The caps definitely will not interchange (thread size and pitch is different) and I don't think they can be made to fit either. The KTM cap is a lot larger and you will not be able to turn it down and still have enough wall thickness remaining.

    [​IMG]

    Unless the 2013 caps and upper fork tubes are dimensionally different this will not be an easy swap.

    Bottoms could probably made to work but that doesn't help much.

    [​IMG]
    #68
  9. Gangplank

    Gangplank Advenchaintourer

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    That's what I did on the Shivered Fork swap. Had stock fork bottom lugs machined to accept the compression adjuster from the donor forks and used to top caps & all internal parts from the donor forks. Easy internal swap.

    Lukas,
    Why not just machine the stock caps to accept the rebound adjustment? Use top caps, internals, macine bottoms & use any fork internals that will fit. 45mm or smaller off almost any dirtbike with enough travel. Travel can be shortened pretty easily. Lengthening is harder...
    #69
  10. LukasM

    LukasM Long timer

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    I don't see how that is possible due to the differences in size and shape of the adjuster mechanism and how much smaller the ID of the BMW cap is.

    [​IMG]

    [​IMG]
    #70
  11. Gangplank

    Gangplank Advenchaintourer

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    So what does the adjuster look like & connect to? All you need to do is machine it to allow the same connection.
    #71
  12. Gangplank

    Gangplank Advenchaintourer

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    Looking at those pictures and the one from above:
    [​IMG]

    It looks like it would be easy to machine the BMW top cap to accept the adjuster part.
    #72
  13. itsatdm

    itsatdm Long timer

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    Are we still talking about the 2013 WP forks? The big issue with the older bike is the crimped cartridge tubes. Any one check to see if the new WP can be revalved?
    #73
  14. Gangplank

    Gangplank Advenchaintourer

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    Crimped tubes are only the start of it. The stock "pumping member" cartridge is just a plunger in a steel tube with a hole drilled it. The hole is the valving. Lol!! no shim stack to revalve.

    Someone needs to pull the WPs apart & post pics.
    #74
  15. Gundy

    Gundy Been here awhile

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    Seems like this thread took a few twists and turns.....can anyone comment on the new fork after spending some time on the bike?
    #75
  16. Hamish71

    Hamish71 Been here awhile

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    Yes. The 2013 43mm are a lot better than the previous 45mm zokes, in stock form. But they are still not great....not as good, for example as the 45mm with heavier springs and oil.
    #76
  17. petzi-baer

    petzi-baer Been here awhile

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    That's the micro fiche for it:

    [​IMG]

    Petzi-baer
    #77
  18. Hamish71

    Hamish71 Been here awhile

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    i will be taking mine off in about 2 weeks to put 48s on. when i do so i will crack one open and have a look at the tube and take some photos....
    #78
  19. xsf18cdf

    xsf18cdf Adventurer

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    Spoke w/service @ Ohlins USA. Kit is in development and word should be forthcoming in next month or so. Just putting this out so Gary Christopher doesn't get swamped with calls over it from our ranks. Sending mine in when its ready. I'll post when I get word.

    Thanks,

    Gary
    #79
  20. Konflict Motorsports

    Konflict Motorsports KM TUNER

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    We have started our R&D about a month ago on the 2013 F800GS and offer a solution that we have not yet released to the public. We are having a test set for a customer done to finalize some details but would like to show the innards from the pre 2012 to 2013 f800GS.

    [​IMG]


    On the left is the 2013 WP sealed cartridge, on the right is the older Marzocchi sealed cartridge. Both units cannot be revalved in stock form. T
    We will release our finalized product and pricing once our testing is completed. This should be completed within the next 3 weeks.
    With the testing we have already completed we are proud to say that the performance gains will be significantly increased with utilizing higher quality materials, along with a few updates including adjustable pre-load on top of the compression and rebound adjustments. We are very excited to offer this product to the inmates.
    I would be more than happy to answer any tech questions you might have.
    Alex
    #80