We’ve illustrated cutaways before, but nothing beats video for understanding how shock damping systems work. This one, from Fox, shows how their DPS (Dual Piston System) diverts oil flow through various ports and shim stacks to control the compression and rebound rates.


  1. Chasejj on

    I have one of these shocks and they are very good and simple to tune to an acceptable setting. I am a fiddler and I was completely happy with my settings in 3 rides. A record.

    Glad I decided on this shock and not a CCDB Inline.


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