john robert bould said:
Our Ludwig ,states spring spacers only change the static hight, the spring rate stays the same,as the spring as a fixed rate this makes sence? if your spacer is 5mm eg the fork will compress 5mm less with the same "weight " appled
Only a change to wire gauge or dia or spring coils rate will alter the fork action. Spacers will only raise the ride hight..sorry!
John, you are right, Ludwig was right, but I didn't see anyone saying that the preload changed the spring rate......
You want to change the preload to get the correct static sag (ride height) for your particular weight.
Changing the spring is the only thing that changes the spring rate...
Gillou recognised this by suggesting he wanted to add a spring to get the rate he wanted. My only contribution is to suggest that he will find getting the rate right easier by changing the internal spring than by adding an external one. It is also a more flexible solution, the springs can be changed again if the rate doesn't suite your style.
Improving the damping is something he needs to do anyway, but even teh best damping will not help unless the spring rate is about right.
So Gillou, to repeat, follow the advice you already have on a spring rate of 8.5Kg and then set the sag with spacers, the cost is the smaller one, ugrade the damping as you can afford it.
Spring rate, then damping......the damper setting will be affected by spring rate anyway.
