Looks and sounds like it is a really great Quad.
Looking at pictues ..............couldn't help but notice the taper out towards the hubs, on the rear axle I know some designs are to have a weak spot to prevent more serious damage.......but I have seen the Yamaha wolverines axle bend twice at this same location. Hope this doesn't prove to be a problem. Now, how to save enough money to get one. :-)

 

Looks like they are trying to shave weight wherever they can.

 

Not sure how durable the aluminum swing are is going to be. The 650 actually weighs a couple of pounds less than the 400. The weight had to come off of somewhere.

 

Well, i am number 2 on the list at the local dealer for the 650 i traded in the grizz for it, now they better not delay the release any because i hate going any weekend without an atv