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Sachs shock adjustment

18K views 10 replies 7 participants last post by  Sport1000  
#1 ·
This is on a '06 Sport 1000. I'm going to try to deal with the stock suspension until I get a better suspension, but in the meantime, I need some help getting the rear Sachs shock adjusted. The owner's manual is pretty much useless.

My main problem is with the stock front forks bottoming out under hard braking (I weigh @ 230# with all my gear on). Took my bike in for service last week and noted that the rear shock is leaking slightly, which will be replaced under warranty. My mechanic said my stock front forks were performing about as well as expected for a Sport 1000, which is not that great as far as I can tell. He said that if the rear wasn't damping enough it might help cause the front end to bottom out.

I note that the spring preload is adjusted below the bottom 1/3 of the threads on the shock body. I assume this is too much preload.

Any tips on adjusting the rear shock for my weight, etc.?

Thanks!
 
#3 ·
dug said:
Search for the procedure to set static and dynamic sag, and try to get your shock and fork as close as you can.
I never could find anything on setting static and dynamic sag on this bike, and not much meaningful in the owners manual. Funny, the Fox shock I put on my Hawk GT years ago had explicit and easy to follow instructions on how to set up the suspension for my weight, setting sag, etc., which took about an hour to dial in but has been about perfect for 14 years.

Anyway, I played around with it and lowered the rear end to the top 1/3 of the preload threads. About the best setting I found to keep the front wheel from skidding was maximum soft compression damping and 5 clicks down on rebound damping. Only a marginal improvement at that. Probably lowering the rear end did more than anything else. At any rate, the stock suspension is less than satisfactory, for me anyway.

Sooo....looks like I'll be investing in a front & rear suspension upgrade along with some alloy wheels and better tires.
 
#4 ·
Sag setup should be the same basic procedure for any bike. Just set for about 20-25% of the suspension travel, usually about 1-1.5". I did this on my GT but the shocks still bite. Wondering if the Ohlins on the newer Sport models will fit the GT?
Biz
 
#5 ·
Biz said:
Sag setup should be the same basic procedure for any bike. Just set for about 20-25% of the suspension travel, usually about 1-1.5". I did this on my GT but the shocks still bite. Wondering if the Ohlins on the newer Sport models will fit the GT?
Biz
Actually the dual shock Sports have Sachs shocks also. The Ducati site sells them for $1200 per pair :eek:
 
#6 ·
#7 ·
BLACKBIRDXX said:
Regardless if you have Sachs or ohlins you need a default setting.
The above links are excellent places to go to get your set up. You need a default starting point and when you do it according to your height, weight, you will always have the default to go back to.

On track days I dial in the front to be tighter and the rear a bit tighter but looser then the front.
When taking a day in the mountain twisties I'll loosen the compression a bit but keep the rebound and will adjust accordingly. For Mucho freeway and around town. I back off alot and loosen it up so as to keep my dental work intact. :D "Know what-I-Meen Vern?"

Good luck
jc
 
#11 · (Edited)
dietrichpfeifer said:
I just got a PDF service manual from http://www.duc.nu/manuals/ (you have to pay a small donation to download it, less than $5), and here is the page on the rear shock for the Sport 1000 with baseline setting for the rebound/compression damping:

Thanks for that info! I will get a service manual from these guys, as well.

I must say, the base settings worked pretty well for me as far as "riding" -- it's only when I have to brake hard that I have problems.

After playing with the stock rear shock for a while to try to mitigate the front forks from bottoming out, I went back to a setting more or less close to the "base" settings, only I reduced the spring preload out to near the top of the shock, lowering the rear end as much as possible. This did make some improvement on keeping the forks from bottoming out and the front wheel from skidding on hard braking, but did not cure it. However, it also compromised the steering, making it alot more vague feeling. Altogether, not a good situation. The stock suspension is pretty much a "price point" compromise, especially the non adjustable Marzocchi forks -- and not even a tool to remove the fork caps. Besides, the Sachs shock is leaking! For me, anyway, this bike is going to require a better set up with adjustable forks.

Hopefully, I'll have some Ohlins on there in the near future, along with some better tires and alloy wheels.