The 650 v2 has the Kawasaki 633cc engine in it, and the Kawasaki "grab and go" or "grip and slip" belt set up. Yours has a true CV (constant velocity) belt set up.
The grab and go set ups are more customizable, generally more performance oriented and arguably put more power to the ground. However they require more maintenance and are less reliable (in my opinion) than the CV set ups.
As I said though, I am impressed with the Highlifter 3GX/Dayco XTX belts. Have outlasted OEM two fold for me.
Fred, I agree with your post So I'm not disagreeing or correcting you, I just tend to use different terminology. In belt driven systems, the CV means Continuously Variable and commonly abbreviated as a CVT for Continuously Variable Transmission. The actual geared transmission just provides FWD / REV & Low Range functionality. Not to be confused with a CV Joint on axles, The Constant Velocity Joint, or the CV Carburetor, meaning Continuously Variable Venturi <grin>
The Clutching action in the V2 system is via the belt where the primary opens enough to allow the belt to slip when at idle and grip when the RPM increases. When at idle the Primary is still turning. Slip and Grip, Grab and Go are common names to describe this setup. The slip and grip clutching via the belt tends to wear out belts sooner due to creating excess belt heat and requires periodic adjustment proper specification to prevent premature belt failure.
On the Tcat, other H1's and Suzuki engine based belt systems the clutching is provided by the internal wet clutch that disconnects the Crank from turning the primary when at idle. The primary pulley does not spin at idle. It is called the Dura-max belt transmission in cat literature. The belt is held under constant tension and should not slip at idle. Because the belt under normal circumstances does not slip the belt tends to last longer and develop less belt heat.
That all said while I've seen others with V2's or Kawasaki's report good experience with Dayco XTX belts, I've not seen the same positive reporting using these belts on the H1's, H2's and Suzuki based cats. OEM belts are always recommended by others???????