Quote:
Originally Posted by desertgasser300
The PFP is basically an external pre-load adjuster.
|
I agree. It increases the amount of hydraulic pressure that has to be overcome prior to the damper rod moving in the cartridge, it's preload.
The cool thing about it is that the ramp from preloaded to movement can theoretically be controlled by shim stacks, and then you can vary the ramp with a change in pfp preload, it's much more complicated than a simple spring preload variation, but appears the same. I think that it adds almost too much variability, bit like the shim controlled bottoming valve and needle variable pds style valving in 4cs forks, tuners are struggling to unlock the more tunable aspects of both systems, but it all holds a lot of promise. All IMHO