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Originally Posted by R4ND0M_AX3
Is the only advantage to inverted the reduction in unsprung weight or is it more complex than that?
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http://www.bilstein.com/tech.php
http://suspensionparts.info/archive/...php/t-273.html
Essentially, with a monotube you get more precise low-speed damping, and more consistent damping rates as they heat up. With twin tube designs, the nitrogen and oil are mixing, and can foam up easily which affects damping. Also, monotube dampers have more oil volume to deal with increased heat.
Inverting monotubes is done to both decrease unsprung weight and strengthen the unit, at the expense of slightly greater total weight for the unit. It is something you will normally only see on strut McStrut suspensions, as there are no lateral loads on a standard shock and therefore the extra weight brings no advantage of strength.