Lighter Rear Spring

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by mlc, Mar 28, 2006.

  1. mlc

    mlc Mid Life Crisis

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    Hi All,
    Has anyone fitted the lighter 130 Nm rear spring to their 950 Adv?
    [​IMG] available from http://ktmtwins.com/950adventure/spss62225-130.html

    I'm looking at changing my standard 150 Nm spring to soften the back a little and hopefully lower the bike so I can get both feet down.
    Any other advice on lowering a 950 Adv will also be greatly appreciated.
    Cheers,
    MLC
    #1
  2. S Won

    S Won Been here awhile

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    746
    Factory Connection used a lighter Eibach spring when they rebuilt and lowered my rear WP shock. 110% better than stock. The preload adjustment knob is now usable. Factory Connection also just did the forks and the bike is now much better than it was before. Highly recommended modifications.

    S Won
    #2
  3. Wayne Weber

    Wayne Weber why are we stopping?

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    Dropped mine (04 S model) from the 14.0Kg/mm stock to about 11kg/mm Eibach, and everything is better. Handling, plushness, the preload is useful now.

    I'm 150 lbs plus gear.
    #3
  4. Doug Matson

    Doug Matson Long timer

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    Wayne what was the part number of the spring? Can you now get the right sag?
    #4
  5. motoman250f

    motoman250f Been here awhile

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    I'm ready to order one from ktmtwins and give it a shot. Im trying to gain the same thing you are, lower sag for better reach and not so stiff a rear end. as soon as they get back to me on if it will fit on the 04 950 standard I'll pull the trigger.
    #5
  6. neduro

    neduro Addict Super Moderator

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    Wayne doesn't set sag, just like he doesn't change tires or do maintenance. He thinks it's a sign of weakness. :razor
    #6
  7. mlc

    mlc Mid Life Crisis

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    I went ahead and ordered the lighter spring from ktmtwins, very efficient over the internet with a few emails exchanged. It should arrive in Singapore next week sometime:clap , I'll let you know what difference it makes as soon as I get it fitted.
    Cheers,
    MLC
    #7
  8. turbotiger

    turbotiger What's my credit limit?

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    Has anyone who rides two-up didled around with a non-stock spring?
    #8
  9. Venturer

    Venturer AKA klakeman

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    Guys - I would not recommend going to a lighter spring to reduce the height. This will greatly increase "sag" and will affect the handling. (Think of a car with worn rear shocks that is riding ride soft and low.)

    Shortening the travel of both the front and rear suspension is the safer and better solution. This is done by limiting the travel of the suspension. You want your bike to be balanced with the spring rates set for your body weight. By shortening the travel (requires modification of the shock), you achieve lower height, with less suspension travel... but with good, useable and balanced suspension.

    I recommend that you speak to a suspension specialist before spending money on softer spring.

    Hope this helps.

    Kirk
    #9
  10. Doug Matson

    Doug Matson Long timer

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    The problem is when your only 150 to 160lbs with no preload on the stock spring the sag is just over 2". The lighter spring is for us skinny guys who want to be able to use the preload ajuster as it was intended. All my dirt bikes with me on them have around 3 to 4" of race sag. I would like to have the sag set to arund 3" using some of the adjuster.
    #10
  11. mlc

    mlc Mid Life Crisis

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    I agree, at only 5'4'' and 140 lbs.....the 950 is a handfull
    The lighter spring has to help.

    And even if it doesn't......it's still the best bike out there
    #11
  12. LKN4DRT

    LKN4DRT Mended

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    I weigh 140 and ride stock spring/preload. If I back off the preeload the bike won't handle very well even on the street. You probably need to do both ends at the same time.
    #12
  13. Doug Matson

    Doug Matson Long timer

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    I agree I have never done just the rear of any of my bikes, they have to be balanced front to rear. The stock front end on my 950 has been soft from day one. When I get the softer spring I will have both front and rear done.
    #13
  14. motoman250f

    motoman250f Been here awhile

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    Dude,, just got my spring and it's correct for the new lowered machines 05.5/06 but the older 03/04/05 need a 255 not a 225. So obviously the spring that comes from ktmtwins won't fit any of the older shocks. the stock on my 04 standard is 255/140.. now the search for a 255/120 or so. maybe mr wayne weber can tell us what part number he ordered from eibach.
    #14
  15. Louge

    Louge silence of the limbs

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    :nod 155lbs with zero rear preload and the .48 fork springs cranked down.
    #15
  16. Wayne Weber

    Wayne Weber why are we stopping?

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    :evil I do set sag. In secret. 30% with me on it in the rear, the front I could care less if it works right... I change tires every time I see threads and I do maintenance every time something breaks. Every single time. :rofl
    #16
  17. Attila the Hun

    Attila the Hun n00b

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    Can you tell me how much spring rate the original 05.5 rear has?

    I would like to lower the bike, but the spring rate is right for my weight. I am thinking about a shorter rear spring with the original spring rate.
    #17
  18. neduro

    neduro Addict Super Moderator

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    You don't lower the bike with a shorter spring, but by altering the internal travel of the shock. You need to find a suspension pro in your area, and they'll be able to set you right up.
    #18
  19. Attila the Hun

    Attila the Hun n00b

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    There are no suspension pro in my area to my knowledge. I'll try to grow some more then. :)
    #19
  20. motoman250f

    motoman250f Been here awhile

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    I just got my 11.7 eibach shock spring from chris at factory connection. That guy was more helpfull than anyone I have delt with yet! I stick with factory connection now for all my suspension stuff. http://factoryconnection.com

    anyway, the bike squats about 1 inch lower now so its easier to get my feet on the ground. It has a lot sloppier feel now onroad and offroad which is what I was looking for. It also bottoms now when I'm running offroad real hard so I might have to turn up the compression or just stop riding it like a kdx 200. It does feel balanced now though since the front end has always been a little loose like a klr,, now the back is that way too.
    I can see if your riding the road or dirt agressively that this is going the opposite direction that you want to. but if your trying to keep the best traction in adventure riding conditions or less than real agressive riding especially if your light or short this might be a solution.
    #20