theres also a really good youtube video of a guy setting up sispension (blonde hair, in shorts) where he gives great tip on getting the initial balance front and rear right for comp/reb

worth a few micnutes searching

Thanks guys for all your help.
I have since found this site:

http://www.sportrider.com/tech/tires...gs/index3.html

This shows 900SS as one and a quarter TURNS out and 16mm thread showing. I will use these as a starting point but will look to replacing the unit with a later model unit at a later date.

Geoff

Geoff, unless your shock is as new and you weigh the same as a 1990's Italian, it wont be right. While stock is somewhere to start, for 5 mins more you can get something far better IMHO

Have a look here http://www.ducatisportingclub.com/sh...ad.php?t=78883

And here at he related links to this guys work http://www.youtube.com/watch?v=8iP7lGhRjPE

Since when did the weight of the rider come into setting the damping on a shock with a given spring rate. The damping is there to control the spring and the forces transfered to it relevant to the weight of the unsprung mass, the speed your travelling and the size of the bumps.
Sprung weight including that of the rider just determines how much of your suspension travel is already used up and therefore how much you have left to deal with what the unsprung mass throws at it.
Altering damping settings to compensate for a incorrect spring is never going to lead to the best handling settings.
All production bikes are a compromise and all you can do is tweak what they have given you to get the best out of what you have available.

but rider weight will dictate the preload

for a fairly nominal fee you could have the shock refurbed and resprung to your weight by maxton or k-tech

they'll set up your base settings .. best money you'll ever spend

Agree with Bally - spring alone will not refub the shock, needs all the internal bits too, so while it may solve a sag problem it wont solve a damping one

Bin it and get a decent one................