Just received my Spectral on a couple of weeks ago. The bike rides great and the new EP8 is awesome. The EP8 rattle really isn't that bad at all. The only complaint I have is the battery rattle. The tolerance for the battery fitment is just too loose and therefore the battery can make a lot of noise when going through some chunky terrain. With that being said, I bought some velcro straps and put 2 of them around the down tube and battery. Makes a world of difference, no more battery rattle. This is how I determined the rattle from the EP8 really isn't bad at all.