KTM 690E - All Things Suspension Related

Discussion in 'Thumpers' started by bigborefan, Jan 10, 2009.

  1. Retumbo7

    Retumbo7 Engineer

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    Mar 12, 2017
    Oddometer:
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    High in the Sierras
    Recently have been considering upgrading my suspension on my 2013 to 300/293mm travel by adding EXC fork internals and converting to the 275mm R shock with the SKF seal head. After reading this thread start to finish a few times, it looks like all I need to do to for the shock is obtain the 275mm lower assembly and attach it to my current 250mm housing (with the new seal-head), however it looks like there are 2 different part numbers?

    2008-2010 275mm Shock Lower: 46180654S1
    2011 275mm Shock Lower: 46180654S7

    Could someone with experience doing this conversion point me in the right direction?

    FYI current suspension setting (which I find a little harsh on rough pavement but OK on fire roads - maybe it's perception thing:dunno):
    180lbs rider /w gear + 40lbs camping gear
    Stock 5.4 Fork Springs /w Superplush Dual-Sport valving, 5mm Preload
    95NM Shock Spring /w Superplush Dual-Sport valving
    Maxima 5w - 140mm oil height
    Heidenau K60 + Scott's Steering Stabilizer
  2. renogeorge

    renogeorge Let's ride!!

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    No experience with the EXC travel increase mods. But your spring rates seem awful heavy for your weight
  3. surferbum

    surferbum Been here awhile

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    Relocated to Scottsdale, AZ from SF Bay area
    Seems like you should be looking at a stiffer front pair and less-stiff rear.


    [​IMG]

    [​IMG]

    Convert N-m to kg-m - Conversion of Measurement Units https://www.convertunits.com/from/N-m/to/kg-m

    FWIW The answer is 9.80665.
    scot_douglas likes this.
  4. Retumbo7

    Retumbo7 Engineer

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    You are correct. Long story short, setting it up like this was the cheapest way to get it rideable (PO had it sprung for 120lbs with 2"+ of lowering :muutt) - Superplush recommended I drop down to 5.2NM Fork and 90NM Shock springs, however I figure if I'm going to mess with it why not get the extra 43mm travel for an extra $1 per mm.
  5. renogeorge

    renogeorge Let's ride!!

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    I must be missing something? Lower bike 2+ inches then install EXC internals for travel increase??
  6. Retumbo7

    Retumbo7 Engineer

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    Previous owner had it lowered. I removed the lowering components and am currently at stock ride height.
  7. renogeorge

    renogeorge Let's ride!!

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    OK. Sorry for the confusion. I'll just say I am 185 naked and run OEM 54s up front with Slavens' pistons and revised valving. Shock is OEM with 9.6 spring and 1" lowering link. I am pretty happy with this setup. If anything I would go a step lighter on the Shock spring. Good luck with your project
  8. Retumbo7

    Retumbo7 Engineer

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    So as far as I can tell, the only difference between the 2009-2010 and 2011 shock is an extra 5mm length:

    2009: https://www.ktmshop.se/documents/9703I8_SLWPS_EN.pdf

    2011: https://www.ktmshop.se/documents/9703K8_SLWPS_EN.pdf

    This is also in line with what mrwwwhite had listed from Page 45:

    My only thought is that the triple clamps were also updated in 2011, so maybe KTM added a little bit of rear shock length to help balance the trail? Anyways will probably go with the 2011 lower as it appears to be a bit cheaper.
  9. Force0321

    Force0321 Dirty Pirate

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    Excellent write up and explanation of how the rebound and compression base valves are set up!! Just had a shop lower my 2017 690E. This helped me understand the process and what the internals look like in the newer 690E's.