KTM 690E - All Things Suspension Related

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

  1. bigborefan

    bigborefan Making new friends

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    The main 690 thread is getting way to big, so I started this thread.

    I have a 690E and I am wanting to get the suspension done. I am thinking SPS or TrailTrick. Has anyone had theirs done yet and if so what was the outcome?

    Thanks
    #1
  2. Rednut

    Rednut Orange Bike, Orange nut

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    I have set mine to the soft settings as in the manual for general trail riding, I found this great for taking the fight out of the bike in the tight stuff. It is pretty good for most things other than BIG jumps.

    Given the shorter travel I think it handles it well. I would only spring and valve it if adding a lot of luggage. I am about 80kgs and ride without luggage.
    #2
  3. Lumpyboy

    Lumpyboy Adventurer

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    Talk with Javier at Trail Trick. I believe he and others are running KTM twin chamber forks, but I am sure he can improve the stock OC forks.
    #3
  4. greengoose

    greengoose boondocker

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    IMO The 690 stock suspension is a pretty darn good. I got into some rocky trails with lots of rutts and washouts recently and was very impressed how well the bike handled it the rear bounced out a little on some of the steeper rocky hill climbs but never got so out of control that I couldnt handle it, I was running 20 comp. and 23 reb. on the clickers. I have also ran the twisty mountain roads of northern Arkansas with the clickers on 10 comp -10 reb and was just as happy with the performance. Its really nice to have that kind of versatility in a bike :D

    If I was going to use it exclusively for offroad riding or racing I would probably have it revalved by a pro, I had my 525 reworked by SMS racing in Denton TX and it was some of the best money Ive ever spent on a bike
    #4
  5. Albie

    Albie Kool Aid poisoner

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    Had mine done by SMS racing out of Denton TX. They've been in the suspension biz for a while specializing in KTM's. Had it and the 450 EXC done at the same time. Can't remember the specifics since I did both at the same time but the springs up front didn't have to be changed out if I rmember correctly, so just had a new shock spring, revalving and set the preload. The bike definatrely handles better on road. No headshake at 75 like it was stock. I really haven't had a chance to put it through the paces off road yet.
    #5
  6. Gros Buck

    Gros Buck Beef = Packed Vegetables

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    I've added the preload adjusters. It does compress springs around 3/8" minimum. Those who finds the suspension too stiff, avoid it. But I'm 210 lbs (these days) so this was not an issue with me.

    I reduced the damping by 4 to 5 clicks afterward. Now the suspension behave perfectly ...

    Paul Jr
    #6
  7. FriedDuck

    FriedDuck Why die all tensed up?

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    I was won over by the descriptions here of SPSs work, and I have two related questions. What's a rough door-to-door price for a revalve & springs both ends? I think it's worth it and just want to get an idea of the budget.

    The other question is tougher: how do you know what to tell them to get a good result? I think street bikes have a narrower definition of what good suspension should behave like, but off-road you could be riding everything from Florida sand to high-elevation rock gardens. Any good advice in this regard.

    [Edit: in the linked thread I got the rough cost I was looking for]

    Jeff
    #7
  8. Lumpyboy

    Lumpyboy Adventurer

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    If you need springs on both ends then budget $800.

    A good suspension tuner will ask you a dozen or so questions about your riding style, experience, every kind of terrain you ride in.

    Trail Trick is a KTM tuner and has a 690E that he has ridden thousands of miles in the desert. I am getting my 200EXC/XCW suspension back from him next week. You can read reviews of his work at KTMTalk.
    #8
  9. JNRobert

    JNRobert Breaking Wind

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    How do the forks on the 690 compare to the 450/530 model? (same, different part number, similar internals, longer/shorter?). I have a project in mind.
    #9
  10. Evil Invader

    Evil Invader Been here awhile

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    Those of you who have taken the exc/sx-fork path, what have you done with the rear end? Another shock? Rebuilt linkage(spelling..?)?
    I would love to get 300mm`s of travel...
    And... This thread is useless without pics.....:deal

    :1drink
    #10
  11. crankshaft

    crankshaft Guns are for pussies

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    Correct me if I'm wrong but the front fork on the 690 is the same as the EXC bikes no? Valving and springs on the exc is obviously different.
    #11
  12. Evil Invader

    Evil Invader Been here awhile

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    Sorry, I was a bit unspecific there...
    My bike is the EU 690 Enduro (no R) and only got 250 mm travel.
    Completly different from the exc/sx. I`m thinkin of taking an exc fork and tripple, but what to do with the rear?
    #12
  13. Mudguts

    Mudguts when in doubt GAS IT

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    shorter stroke 275mm , i have some xcw cc forks (300mm ) also a spare linkage wish bone going to machine shop this week chip out some some adjustablity or the shick . The cc forks are huge inprovement over stock but if you get rid o the extremely harsh hi-speed valving standard fork are very capable
    #13
  14. crankshaft

    crankshaft Guns are for pussies

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    OK, trying to wrap my mind around this:lol3

    If I tossed a set of 48mm Forks from my 550 Berg onto the 690, I would have gained 25mm of travel but can't you just change the internals of the stock 690 e forks and make them 300mm? The rear shock I understand is more of a project that requires a longer shock shaft to increase the travel.
    Sounds like you're going to try and change the linkage to change the ratio... is that right? If that is the case, will it have an adverse effect on the damping?

    How do you compare the 690 R suspension to the EXC stuff? Forgive me for being dense, I'm trying to get a better handle on how I need to proceed with my project.

    Evil, why would you need to change the triple? Adjustable offset important, or is it the offset of the EXC triples that makes a difference over the stock 690E triple?

    I've been riding/racing a Super Enduro for the past few years with enthusiasm and the only thing I've done to the stock suspension was to regularly service the forks and I did a bladder conversion to the rear. So far, its been great and I see now reason to make any changes. I do remember that the 690 didn't handle as good as the SE but it has been awhile since I owned the 08.

    Maybe a works rear shock would be the way to go? As I recall, you can have them custom made to your specs and its probably easier to service than the WP shock.
    #14
  15. crankshaft

    crankshaft Guns are for pussies

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    When you say CC forks, you mean the twin chamber forks?
    #15
  16. Mudguts

    Mudguts when in doubt GAS IT

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    CC = twin chamber

    I running the 300mm fork 13mm down in the triples that are adjusted to the 22mm offset with rear seg set to 85 mm i think ( can't remember )

    I find it handle's real nice no pushing or tucking under in the front
    I have yet to bottom out the fork hard they just seem to soak it up


    I need to get the shock revalved again still much hi speed damping for me
    as for the linkage I believe it will make it harsher but theres nothing like trying it out the goal is to elongate the holes and make some ecentric spaces , there's some photos of cyril's & chris's baja bike and there factory linkages on KTMTALK there hard to find but their there but that bike also used a different swing arm 690RR
    #16
  17. crankshaft

    crankshaft Guns are for pussies

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    Excellent, thank you for explaining it. Seems like we're pointing in the same direction but coming from different directions:lol3
    I'm trying to build a bike to do some racing this year and I like what I'm hearing. I've also been checking out the Baja bike pics and noticed the differences you mentioned.
    #17
  18. Mudguts

    Mudguts when in doubt GAS IT

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    The fork springs I using are .48 polished and one rate up on the rear , for my 95kg


    I also thinking of going the whole hog and ordering some SXS factory forks
    but the KTM AUS , KTM US TRADE imbargo don't make things as easy as what the use to be
    don't know what I'll do with the shock , maybe get the in ternals polished
    as there is no after maket shocks available , stiction is the biggest problem with my current set up ,but first I'll get the new 2010 seals in the forks they are supose to help a heap .

    I have been thinking a of a hybred rear shock but need to speak to an ohlin's mech , somthing of a Ohlin TTX yami R6 gas chamber MX piston chamber and sharft, just need to know if this is possible then need to see if the gas chamber is in the correct possition . but working with what i have is far easier.
    #18
  19. crankshaft

    crankshaft Guns are for pussies

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    A good friend of mine has a set of custom made shocks for his hill climb car made by AFCO. You give them all the specs and they build it for you custom.
    http://www.afcoracing.com/hr_shocks.html
    Maybe I'm crazy but why would they not work? Obviously we don't need to worry about bump steer, so it might be easier to figure out:lol3

    Shot in the dark I guess....

    If you need anything shipped to you, drop me a PM and I'll help you out.
    #19
  20. bigborefan

    bigborefan Making new friends

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    Hey Crank, I started this thread but I am still running stock suspension on my 08. I am a cheap ass sometimes..:D I have perfromed a service on the front end due to a leaking seal, and that is it. The biggest problem with the 08 suspension in my opinion anyway, is it is too stiff on small hits, tree roots, rocks, frozen dirt road with ripples and ruts, you really feel everything there. Lots of feedback at the bar. Then it is too soft on big hits, especially g-out situations. I think it needs softer valving, or at least initially softer and progressive valving, and stiffer springs.

    I am not racing mine, using it for a back roads cruiser bike, with an occasional AMA Dual Sport event, but they are mild Dual Sports. I did ride it across CO once, but jeep roads, not any single track, The only time the bike has scared me was in CO. I found a whooped out riding area outside of Montrose CO and the bike really wanted to swap side to side there. It felt way to soft for that stuff. It was fine in Michigan whoops though, they were not as deep and softer dirt as well.

    I weight about 225 with no gear, and I am 6'1". I would say I ride 50/50 standing vs seated. I am a pretty smooth rider, and ride light on the bike. I am not a hammer head. Although I have learned the 690 at speed goes where it wants sometimes, so I adjust in those cases.

    I know SuperPlush has a solid rep. Slavens Racing in CO supposedly has some magic for the 690, but he ain't cheap. The suspension guy at KTM World in Georgia, he rides a 690 himself, he says he can fix it. I have MX Tech pretty close to me, so I could hand deliver the stuff to them.

    TrailTricks on here, I am sure you know him. He did some stuff to his 08, different fork and shock mods.

    If you can score an 09/10, you start off a little better, an inch more travel anyway.

    Who I used personally would depend on timing and money. I travel a lot, if I was was going to be close and could hand deliver, that would be nice. If money was no issue, I would try Slavens.

    6500 miles on mine so far. One of the most fun bikes I have ever owned. I know all you SE guys say the same thing about that bike. I have ridden two SEs, and I liked it.
    #20