Quote:
Originally Posted by chris.p
Simples really, if you have no static sag your bike will top out with a Bang in some instances, for example if you hit a small crest at speed, your suspension will top out, not good.
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With respect, I think you might be incorrect there. Static sag alone will not stop the suspension topping out. The suspension can still top out regardless of what your preload is set to, it's not a 'top out prevention device'.
One of the reasons for setting 'sag' is so that with your weight on the bike the forks\shock have enough travel\range to decompress as well as compress. But they can both still technically top out.
If preload, and therefore (rider) sag, is set correctly, there will be enough travel in the fork\shock for the suspension to move up and down, then compression\rebound damping controls the rate at which that happens.
If all that is setup properly (in combination with the correct spring) then top out\bottom out shouldn't happen, but none of that really has anything to do with static sag. As far as I can tell anyway.