Ohlins Spring Rates

Discussion in 'Technical Help' started by CRYSTALJOHN, Oct 4, 2014.

  1. I have just fitted an Ohlins rear shock to my 749s.

    This is what is written on the spring: 1091 21/75

    My weight is aprox' 75kg.

    Is this the correct spring for my weight?
     
    #1 CRYSTALJOHN, Oct 4, 2014
  2. That would depend on what your doing with it?
    Set the sag / preload and put a cable tie around the damper shaft to measure maximum suspension deflection. Then go from there.

    I'll have a double check at what's under the back of mine. I wouldn't like to commit but I'm. Sure it's a 90nm. /
     
    #2 Northan Monkey, Oct 4, 2014
    • Thanks Thanks x 1
  3. Yes, the spring is a 160mm long spring. Rated at 75 NM.
    Perfect for your weight john. Will be too light for a pillion though
     
    #3 PeterT, Oct 4, 2014
  4. PS if you want to use it for track days you might consider a 90 nm spring.
     
    #4 PeterT, Oct 4, 2014
  5. Heres a chart that may be of some use to you. Rider weight at the top.

    ohlins spring rate.jpg
     
    #5 ducati2242, Oct 4, 2014
    • Thanks Thanks x 1
  6. Thanks for the chart Ducati2242. I presume that rider weight is what the rider weights when kitted up with leathers and helmet etc?
    Looks like the 9 is good for me.


    Won't be carrying any pillions on my monoposto
     
    #6 CRYSTALJOHN, Oct 5, 2014
    Last edited: Oct 5, 2014
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