KYB Shock springs on a SACHS & valving ??

Discussion in 'Common Items on Husqvarnas: Tires/tubes/grips/etc' started by HUSQVNA, Nov 28, 2009.

  1. HUSQVNA Husqvarna
    AA Class

    Location:
    Arizona
    1. Rumor has it KYB shock springs will fit on Sachs shock body. Can anyone confirm/deny that claim? I don't have access to one to compare side by side. Looking to go from stock 5.4 to a 5.6.

    2. Also wondered if it would be necessary to revalve the Shock in going to a 5.6 from said 5.4, or if the difference was marginal enough it wouldn't make that much difference.

    Thanks!
  2. ScottyR Husqvarna
    AA Class

    Location:
    Mitchell, ON
    I have used them in the past without any hassles.
  3. HUSQVNA Husqvarna
    AA Class

    Location:
    Arizona
    That's the news I was hoping for. Any thought on revalving with such a minor change in spring rates?
  4. mxer74 Husqvarna
    AA Class

    Location:
    Pawnee, IL
    Yes, works perfect. I used a titanium kyb spring on my Sachs shock with no problems. Good luck.
  5. NWRider Husqvarna
    AA Class

    One word of caution. The 2 stroke (at least the pre 09 models) have a slightly shorter shock. I tried a ti oem Yamaha spring and had to go to a tire store to use a strut compressor to get the spring on. It was about 1/4" too long to go on and off.
  6. JRod4928 Husqvarna
    AA Class

    Location:
    Pittsburgh, PA
    Husqvarna Motorcycle:
    2012 CR165

    THREAD REVIVAL!

    I just bought a 5.5 Ti spring from a 2007 YZ450 for my 2012 husky - can anyone confirm that you need to pre-compress the spring to install it on the 2012 Husky Sach's shock? The guy above mentioned that he had to do this on the pre-09 models.
  7. MOTORHEAD Husqvarna
    Pro Class

    Location:
    Mount Vernon, Indiana
    Husqvarna Motorcycle:
    none
    Other Motorcycles:
    2014 YAMAHA YZ250
    I have a Ti KYB spring on mine and have used a number of KYB spring without issue, as long as they aren't progressively wound.

    Progressively wound springs are typically smaller on one end and won't work with the stock spring seat.
  8. raisrx251 Husqvarna
    AA Class

    Location:
    Virginia
    You will just have to try it and see if you can get the spring started. I had a Yamaha spring on one of my Huskies that was longer but I was able to use it. A word of caution on the Ti springs, my 2010 X-light motor would rub the larger ti spring I had right on the back side of the motor. Titanium will not put up with this and will crack. So just check your bike on the stand and make sure there is no place for it to rub the motor. Otherwise have fun!

    Valving should be fine going from a spring rates, worst case you may have to move a few clicks on your settings but I would doubt you notice it.
  9. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    I found KYB springs to work but are larger OD and can rub the airbox (on the 125's anyway).
  10. JRod4928 Husqvarna
    AA Class

    Location:
    Pittsburgh, PA
    Husqvarna Motorcycle:
    2012 CR165
    Has the rubbing become an issue?
  11. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many

    Not really as the spring does not move much and when compressing moves away from the boot. But I did not like it and replaced it with the right spring.
    JRod4928 likes this.
  12. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    Maybe it is just a 125 issue then.