V4 Base Sachs Shock Spring Rate?

Discussion in 'Panigale' started by 750steve, Apr 6, 2020.

  1. Has anyone managed to find out what it is? I’d be really grateful if someone could post it up, I can’t find the info anywhere


    *EDIT*To save everyone reading the thread Ducati replied with 95N/MM :upyeah:
     
    #1 750steve, Apr 6, 2020
    Last edited: Apr 30, 2020
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  2. :p

    :grinning::pI’ve sent an enquiry through to them this morning, I’ll see what comes back from that.
    Thank you for trying to help though, much appreciated
     
  3. It’s going to be 95n

    There’s no reason for the Sachs spring rate and the Öhlins spring rate to be any different.

    The geometry and shock length are the same - as far as i’m aware spring rates have always been consistent between base and S models on the panigale - it’s the quality of the shock and the electronic adjustment- not the spring rate.
     
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  4. Cool, that’s good to know :upyeah:

    When the 2 bikes were launched I remember reading the S suited a lighter rider than the base. I have the base & preload is pretty much wound all the way off, my friend has the S & he runs a fair bit more preload than me, I’m 2-2 1/2 stone heavier than him & we ride at about the same road pace so I did start to question if the spring rates were different.

    I’ve submitted an enquiry through their site now anyway so when/if I get an answer I’ll post it up
     
  5. Based on what you have said - i’m probably completely wrong :)

    It’s interesting if thats the case - looking at the Ducati Omaha listings for Ohlins springs it would indicate that the equivalent rate spring on a base sachs would suit a much heavier rider.

    I can’t work out the logic behind it so would interested to see what you get back.

    C09C3352-F561-4EAA-86E1-50EB8DD1AA3F.jpeg
     
  6. Bloody hell, that’s completely weirded me out now! So basically what they’re saying is what the reviews have said??

    hmmmm. To make it more confusing I’ve just talked to a guy who knows a fair bit about Suspension & the V4 in particular & he said because of whatever way the linkage is set you can run a lighter spring for the rider weight, well in the R model specifically. He’s 15 stone & runs an 80nm spring (he calls it 8) but a different make of shock & he told me A pretty decent racer (WSBK) runs a 70.

    Brainfart!!

    & it’s all because I’m swapping my shock for an Öhlins from a V4r & I want to get the spring rate right before fitting it. General consensus says they’re pretty hard at the back & most soften them, think a 95nm comes standard in the R
     
  7. 5DD64379-59DC-430D-80C6-4FF286075221.jpeg 215D9A0A-CDAB-48AC-81FC-06B9FDBCD12B.jpeg

    The part numbers for the V4 and V4s are the same apart from 9 and 10 - but for the life of me I can’t see the difference.

    Does that mean if you are fitting an Ohlins shock you also need those parts?

    The Ktech replacement also has a 95nm spring so it’s not ohlins specific.
     
  8. If I was you and fitting the Ohlins I would go with the spring weight guide for that on the Ducati Omaha site.

    That should give you a baseline to start from and you can setup the bike and try it. If you can’t reach a setup that suits you, then consider changing spring rates. Some people prefer a different feel to others and have different riding styles so you can’t really go on their setup.

    What do you weigh in full riding gear and are you going to be riding track or road?
     
  9. Your both getting really warm! The other big factor is the linkage and the rate it compresses:bucktooth: I tell you it’s a dark art;) I’m sure your heading in the right direction :upyeah:
     
  10. Are the linkages adjustable on the V4 models like the 1199/1299 Dave? I’m not familiar with them?
     
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  11. Cheers for dropping in @Dave dunlop

    was just about to say linkages, cos that’s what 9 is in the parts diagram, the ratios must be different & now I see that I near bet my house the R & base are the same?

    I’m happy enough then, the shock should be a straight swap & will hopefully be firmer than the same spring rate in the S

    For future reference the 2020 bikes have changed linkage & they run a stiffer spring for the same weight rider as the 18/19 bikes
     
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  12. in the full outfit about 104kg, 231lbs or near 16 1/2 stone :mask:
     
  13. R Part numbers match the S

    A6D115F8-B728-4BF3-A514-9602F6F5BCA0.jpeg
     
  14. Bloody hell this is weird!
    So the reports on the S say the shock is soft, but the owners of the R which comes with the same spring rate & linkage as the S say the shock feels hard.:sob:
     
  15. Dammit I’d love to know the difference In those linkage parts
     
  16. Then I would guess it’s more down to their, weight, usage and setup and perceptions then.

    If you start tweaking compression and preload you can make a shock feel really solid or really soft - so maybe the electronic suspension on stock settings is automatically softer.

    Everyone always says the electronic suspension is better for coping with bumpy road and manual better for the track so that’s probably the answer.

    Your remaining question is just whether the stock V4 parts 9 and 10 are actually different in any way to the S and R - and if so - does that mean an ohlins shock with a 95n spring would actually be stiffer with the stock linkage.
     
  17. Can you see a difference?

    9EAD9BFA-97BC-412C-B8D8-7A4AA82A76B4.jpeg A8C0261C-9AF0-4420-A010-870CFCFAE48D.jpeg
     
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