Do you find that these tanks need the crash bars or no? I see a lot of people run these with just the panels. Is that good enough? Are they super tough or something? Are the safari tanks lighter than the stock tanks + their cover fairings? Are these becoming the preferred fuel extension over the Neduro tank? Was thinking of doing that with the coming 2-into-1 exhaust modification I am planning. Thought it could add some fuel without putting it over the front.