2020 Beta

[dwb79]

At what point do you typically start to see cross talk between the comp and rebound circuits?

I've attached a screenshot of a live test.

After each cycle of the shock, I unscrewed the rebound clicker one click, starting from zero (full clockwise) and working out to 30 clicks.

You can see that every clicker reduced both the compression and the rebound damping. So, crosstalk is happening all the time. You will find this to be true for nearly all shocks without a shaft jet or RSV.

I believe that crosstalk will continue to cause a change in compression damping right up to the point that the compression adjuster starts to produce more damping than the rebound clicker. Given the compression adjuster sees a fraction of the oil volume compared to the rebound clicker (14.9% in this case), we will never see an absence of crosstalk within the normal working range of most rebound clickers.

[dwb79]

I know on many shocks I've tinkered with as you come towards 0 on the rebound the comp side all but hydraulically locks itself up. Definite cross talk.

In the above graph, you can see that with the rebound clicker at zero, it takes 40kg (half an average persons weight) to compress the shock at 9mm/s.

Without a dyno and back to back runs and data hard to see where those changes start to make considerable differences though.

I think the "considerable differences" are when the clicker change, and in this case crosstalk, puts the damping numbers outside the comfort zone. This is dependent on the original damping forces and the rebound clicker design.

Great questions Jakobi

[Jakobi]

In the above graph, you can see that with the rebound clicker at zero, it takes 40kg (half an average persons weight) to compress the shock at 9mm/s.



I think the "considerable differences" are when the clicker change, and in this case crosstalk, puts the damping numbers outside the comfort zone. This is dependent on the original damping forces and the rebound clicker design.

Great questions Jakobi

Bloody good answer too Dave!