Yep, I did it on my SK30 and it works fine. I actually had the dealer install it when I took delivery. There have been comments on here about possibly causing a weakness in the bumper welds but I've certainly had no problems over 9,000 miles of some really terribleMidwesternroads last summer.
I just installed one on my 2011 315RE . In feels very solid on there so I dont anticipate any problems. THe 16" tire and rim wieghs 65 pounds so I dont know what dthe actual difference will be on the pin wieght given that 65 pounds is now 10 feet behind the axles