Well, I test drove a 650i and I gotta say, WOW, I am impressed! So impressed that i purchased one. It is a camo 650i. The dealer talked me in to installing a Dyna CDI ---I am so glad I got the Dyna. This thing screams off the line and is strong all the way through the powerband. I am very impressed to say the least! I previously owned a 750 and I have to say I cannot tell a difference on the low end with the Dyna. In fact, I think it is a little quicker with the Dyna. I can pin the throttle in the grass, dirt or pavement and I am looking at sky.. I am in no way bashing the 750, it is an awesome machine, I'm just giving my observation. The steering has been improved and there does not seem to be as much heat coming from the header. This 650i will flat fly and handles great!