Technically, there are 3 versions of the 620 that I can see. Your basic 620, then your dark with dual front brakes and the dark with the single front brake. You have your choice of 2 different dark models and the standard model. Now, onto my complaint. The freakin 6th gear!! I have been in love with my bike since day 1 but have always wished I didn't have to be winding 5th gear down the street, not highways, but main streets. 65-70mph revs high in my oponion. Granted there is still a lot of room on the tach, I'm just not a fan on high rev'ing. Now after I buy mine, they add the 6th gear. I guess it could be worse though. They coulda squeezed like 75 ponies outta the engine to really piss me off! And THEN what I have yet to see anyone bring up is the NEW MIRRORS! They actually look kinda cool. No more Mousekateer ears. I will definately have to check them out when they arrive at my local dealer. Maybe I'll purchase them, they even claim more visibility. Ok, I think I'm done for now.