I think my 09 Dragon was around 18-20 pounds.IMO it's not worth it on a mountain sled. Especially on a Pro where their big selling point is weight reduction. And most if not all is on one side of the sled.
Excellent at turning left.
I ordered to have the capability and not have to figure out a way to change the clutch later. Easy to take the battery and starter motor off if I want to.
Do a search on this 4M and there was a guy who actually showed that setup being weighed. I could of swore he said it was 12 lbs for everything but the wiring.