Originally Posted by 98hotrodfatboy

Springs will collapse over time and not have the same rebound.

If you use the progressive set up you will have to use the spacer provided. They recommend 3" but i went with 3 1/2". love it...

As for the fork oil, you really should be replacing/changing as recommended @ 10k mile intervals. Sludge will build up and the dampers will not work as they should and will clunk. Always check the neck bearing fall away every 10k as well...