Specs for shock and fork srpings? - Ducati.ms

Rob H · May 13th, 2010, 5:05 pm

I apologize if this info is in here, but I wasn't able to find it... If anyone knows the stock spring dimensions (and spring rates), please share.

From the service manual, I got that the service limit for the fork springs is 270mm, and the rate is 0.660 kg/mm, but I wasn't able to find anything on the shock. I plan to replace the springs myself, but I'm at a loss as far as what to buy and where to buy them. I know the GP cartridges are the way to go, but I'm just going to re-spring it for now...

Thanks in advance!
Rob

DavidTaylor · May 13th, 2010, 9:06 pm

According to Marzzochi, on the 1100S the spring rate on the front is .86kg/mm. I had my fronts changed to a .90/kg spring and the change in sag was in line for that amount of increase (50mm from 63mm). If they had been .66 I would have anticipated more.

As for the rear shock, the Ohlins comes stock with a .90kg/mm spring. I had this changed to a .95kg spring with similar improvements in sag. Ride comfort and performance were significantly better on both ends after these upgrades.

Well, until I flipped it...

freezer16801 · May 13th, 2010, 9:54 pm

according to racetech, the forks come with .66 kgs. I also replaced them with .90kgs. I don't recall what was on the standard model sachs. I also had traxxion replace that. Give racetech a call, they can sell you some springs.

Rob H · May 14th, 2010, 8:50 am

Thanks guys! I shot an email to Lindemann Engineering yesterday, and Jim responded last night. Seems like a great guy. I'm going to give him a call later today to hammer out the details.

I was thinking I'd be able to live with the suspension for a while (I only have 250 miles on the clock), but I spent some time in a parking lot practicing hard stops and that sickening sound of the forks bottoming out made me accelerate my plans to go to stiffer springs!

DavidTaylor · May 14th, 2010, 9:49 am

Quote:

Originally Posted by Rob H

Thanks guys! I shot an email to Lindemann Engineering yesterday, and Jim responded last night. Seems like a great guy. I'm going to give him a call later today to hammer out the details.

I was thinking I'd be able to live with the suspension for a while (I only have 250 miles on the clock), but I spent some time in a parking lot practicing hard stops and that sickening sound of the forks bottoming out made me accelerate my plans to go to stiffer springs!

Jim does great work, he's done the suspension on a few bikes I've owned in the past. A couple of things to be aware of - 1) this is his busy season so it may take a little while. 2) Jim's perception of the space-time continuum runs at about 1/2 speed.

Said another way, I always double whatever time frame he quotes me and I usually get my stuff back in about that amount of time. So if you hear 10 days, expect 3 weeks. Otherwise that guy does absolutely amazing work.

Rob H · May 14th, 2010, 10:05 am

Quote:

Originally Posted by DavidTaylor

Jim does great work, he's done the suspension on a few bikes I've owned in the past. A couple of things to be aware of - 1) this is his busy season so it may take a little while. 2) Jim's perception of the space-time continuum runs at about 1/2 speed.

Said another way, I always double whatever time frame he quotes me and I usually get my stuff back in about that amount of time. So if you hear 10 days, expect 3 weeks. Otherwise that guy does absolutely amazing work.

Awesome. Thanks for the heads-up! I'll make sure I don't take anything apart until I have the new springs in my hands...

yellow cake · May 15th, 2010, 11:42 am

Quote:

Originally Posted by freezer16801

according to racetech, the forks come with .66 kgs. I also replaced them with .90kgs. I don't recall what was on the standard model sachs. I also had traxxion replace that. Give racetech a call, they can sell you some springs.

What's the part number on the front springs you bought? I couldn't find them on the racetech website, and when I called they mentioned it'd be an "in house" job only...what was the cost, if you don't mind me asking