Maybe some people will realise that a half pound on you bike for much better working suspension will make you faster then a half pound lighter bike with sh!t suspension.The damper itself will probably not weigh much more than what is in there. This big addition will come with oil. For example, having to run at least 300cc of oil in a Fox 40 (probably more like 400cc) vs 150cc for the damper and outer leg in stock form will add a whole bunch of weight.