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agreed. as they apparently changed ownership, it would have almost made more sense to change the name of the company & build a new rep from scratch.

so the 'smiley face' displacement plot actually plots force vs. displacement through 2" during which velocity is varied from 0 to 10" / sec, right?

eureka! ok, so essentially this is not a CONSTANT velocity plot, but a CONTINUOUS velocity plot. the angular velocity of the crank on the dyno swings a full 360 degrees from zero to compressive 10" / sec, back to zero, up to rebound 10" / sec and back to zero again. measurements are taken...

on the first chart, what caused the break circled in red here?

one more question on the 10" / sec continuous rate: is this considered a 'high speed' (i.e. hitting bumps) or 'low speed' (i.e. cornering) metric?

jeff - why does force vary with displacement at a continuous velocity? shouldn't it be more or less one constant for compression and another for rebound? i can see how a cv plot could be useful to verify performance through the entire motion range. why is 10" per second the standard rate...

at some point, business is business. if you were the first owner and these were six months old, that's one thing. you are the third hand owner (at least) and these are several years old. they were probably out of warranty when you bought them; certainly out of warranty now. if i buy a six...

bouncy ride = underdamped or oversprung (or blown seals). problem is that this graph does not tell us that. if this is a constant velocity plot, this tells us very little. there are certain velocity ranges outside the realm of normal operation where ALL shocks will exhibit poor behavior...

a few observations. first, i have no personal experience with KSport's product. in researching their products, i learned a lot about their company and a little about their history. first, in many cases where people have had the shocks start leaking shortly after purchase, they were clearly...

wow; leaking? what year did you buy these, out of curiosity?

a CV plot would be the ONLY way that graph would make sense. the problems is that the force required to actuate the damper still shouldn't change with displacement unless there is a spring attached. if there IS a spring attached, then all we know is KSport installed different springs left to...

no joke. the chart he posted kind of looks like half of a progressive rate spring graph. consider a progressive rate spring with a rate of 250 lb/in^2. we could graph force vs. displacement. we'd see that as we stretch or compress the spring 1", the required force would be 125lb. as we pass...

georgia tech looking at the website for jeff's shop, it appears they are an authorized koni dealer & service shop. apparently they have a roehrig dyno (good stuff) and have been in business long enough to know how to use it. apologies for coming in 'guns blazing'; i've been reading site...

p.s. you DID take the springs off before you put them in the dyno, right?

sorry to resurrect an old thread. i was researching these KSport units and came across your 'shock dyno' graphs. what are you trying to display here? you have graphed force vs. displacement, but the force required to compress or decompress a damper is INDEPENDENT of displacement. force...