Rear Spring

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Bizzare1199s

Joined
Aug 18, 2014
Messages
5
Location
Los Angeles
Hey guys, I searched the forums but I couldn't find the answer to my question. I've searched all over the internet for rear springs but I can't find a supplier.

I'm on a 1199s and I only weigh with gear about 160lbs. The spring calculator suggested a .75 kg/mm rear, but I can't figure out where to get it. Any suggestions?
 
Thanks for the link Jarelj.

I just noticed that your link suggests a 80Nm spring for some one weighing 170lbs.

How come I was told by Dan Kyle that I would need a 95Nm shock spring for my weight when I weigh only 165lbs with gear? Bought the shock and spring off him a few months ago and is on the bike at the moment. Looks like he sold me the wrong spring lol. The front uses 9.5 springs, again suggested by Dan Kyle.

I am wondering if I should change them to different springs?
 
mali said:
Thanks for the link Jarelj.

I just noticed that your link suggests a 80Nm spring for some one weighing 170lbs.

How come I was told by Dan Kyle that I would need a 95Nm shock spring for my weight when I weigh only 165lbs with gear? Bought the shock and spring off him a few months ago and is on the bike at the moment. Looks like he sold me the wrong spring lol. The front uses 9.5 springs, again suggested by Dan Kyle.

I am wondering if I should change them to different springs?
Click to expand...

I weigh 190 lbs. and I have an 85 Nm spring on my shock, and it works extremely well in Flat-Rate linkage setting. IMO, and according to Ohlins, 95Nm is way too stiff for a 170 lb. rider in Flat-Rate linkage setting. I would agree with .95 Kg springs in the forks for your weight.
 
Here's some video to back up what I'm saying, you can see full-throttle corner exits with minimal DTC intervention, which means the rear is hooking up very well. If the spring was too stiff I'd have a lot more wheelspin and DTC would be going nuts. If it were too soft, the rear would be pogoing/squatting and I'd be getting headshake.

TrackAddix MPH 8-17-14 - Ducati Group - YouTube

And the final determination is tire wear, which looks great:

Tire.jpg
 
kaido said:
Does Ohlins do anything less than 75Nm

i am around 60-65kg with gear so around 143lbs?

what is the 1199 base spring rate in the rear?
Click to expand...

Yes, a 21040-19 would be a 70Nm Ohlins spring. I'd probably still go with the 75Nm if you're going to do any kind of aggressive or track riding though, unless you've lightened the bike significantly. I'm not sure on the 1199 base spring rate, on the S it's 90 Nm. Showa doesn't print spring rates on their springs, and Ducati does not publish stock spring rates. I'd suspect it's close to 90 Nm though.
 
jarelj said:
I weigh 190 lbs. and I have an 85 Nm spring on my shock, and it works extremely well in Flat-Rate linkage setting. IMO, and according to Ohlins, 95Nm is way too stiff for a 170 lb. rider in Flat-Rate linkage setting. I would agree with .95 Kg springs in the forks for your weight.
Click to expand...

Should I change the rear spring to 80 Nm instead and leave the front as it is?
 
Just curious, where can I find the recommended spring rates by Ohlins anyway? Its not on their website, do you have any literature from them that says which spring for which weight?
 
mali said:
Just curious, where can I find the recommended spring rates by Ohlins anyway? Its not on their website, do you have any literature from them that says which spring for which weight?
Click to expand...

Ohlins does not publish their recommended spring rates, they rely on their dealers to make the spring rate recommendations. They will provide us with recommendations for a particular application/bike/rider combination but they don't send out a list or anything because there are too many variable such as how the bike is going to be used, etc.
 
Thanks for all this info, I will change the rear spring to 80 Nm, I have just checked, the rear is 90 Nm on mine and not 95 Nm, apologies there for the mistake. Still stiff according to what we discussed earlier.

I spoke to two other Ohlins dealers here and they run Panigales in BSB, they both suggested 80 Nm for the rear shock and Dan still recommends 90Nm for my weight I do not know why :(

Before I change to 80 rear, does it mean my current setup will be of no good anymore? The rear is fine at the moment but could be better with a 80 spring, do I have to re-adjust the damping values after changing to 80? What about the front? Should I leave the damping values there as it is or they would need adjusting too?

Thank you.
 
mali said:
Thanks for all this info, I will change the rear spring to 80 Nm, I have just checked, the rear is 90 Nm on mine and not 95 Nm, apologies there for the mistake. Still stiff according to what we discussed earlier.

I spoke to two other Ohlins dealers here and they run Panigales in BSB, they both suggested 80 Nm for the rear shock and Dan still recommends 90Nm for my weight I do not know why :(

Before I change to 80 rear, does it mean my current setup will be of no good anymore? The rear is fine at the moment but could be better with a 80 spring, do I have to re-adjust the damping values after changing to 80? What about the front? Should I leave the damping values there as it is or they would need adjusting too?

Thank you.
Click to expand...

After changing to the softer spring, you'll definitely want to alter the damping settings on the shock to account for it. Set the sag first of course, but then if you had a damping setup that you liked with the 90Nm spring you'll probably find you need to increase the compression damping a click or two to get the same feel back with the lighter spring. Especially if you had reduced the compression to make up for the spring being too stiff. If the rear felt stiff before, then I wouldn't add more compression straight away. You may find you need to decrease rebound damping a little also depending on how your tire wear looks. You shouldn't need to change anything on the front as a direct consequence unless you're finding that the rear is staying lower during braking and not transferring as much weight to the front, in which case you can soften the front a little to give better compliance/traction on turn-in.
 
Thanks, Jarelj.

I really hope the 80Nm spring will like the so called 195bhp at the real wheel! The 899s here run 80 and 85 Nm springs in race trim and they are low on power too.
 
jarelj said:
We also have them listed here:
Ohlins Shock Spring - Panigale 1199/899 | OHLINS-SS
Click to expand...

The table you provided suggests 90Nm for a rider (with gear) weighing 210 lbs. If the rider is say, 200, would you suggest the 90Nm spring for assertive road riding?

Second, that seems like a significant increase at the rear. Should there be a commensurate update to the front springs, or would the stock springs suffice?

Thanks much for your feedback.

PS: My 1199R's swing arm is in the original (stock) setting.
 
2WheelsRBetter said:
The table you provided suggests 90Nm for a rider (with gear) weighing 210 lbs. If the rider is say, 200, would you suggest the 90Nm spring for assertive road riding?

Second, that seems like a significant increase at the rear. Should there be a commensurate update to the front springs, or would the stock springs suffice?

Thanks much for your feedback.

PS: My 1199R's swing arm is in the original (stock) setting.
Click to expand...

90 Nm is the stock spring rate on the 1199R. At around 210 lbs. or so the stock spring rates on the S/R are usually pretty good (90 Nm rear spring, 1.0 Kg front springs), so you might just be one of the lucky guys who doesn't need to change anything! If you feel it's too stiff, you can go to an 85 on the rear and/or a .95kg in the front but I wouldn't change anything unless you have a solid reason for doing it.
 
Thanks Jarelj, I'll be placing an order for the spring, I probably only weigh 165 soaking wet with full riding gear, I've backed off the spring to the max but still keeping full thread engagement still only have around 20/22mm rider sag. On the front my zip tie still shows around 45mm on the fork tubes of unused travel
 
Right on, at 165 the stock springs are way too stiff for you. It's funny, getting the right spring rates is one of the most effective ways to improve the performance of any sportbike, and very inexpensive, but yet something the vast majority of people never do!
 

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