I asked my dealer about a belt conversion for my new 07 SM & he advised against it because (1) extra stress on the rear wheel bearings due to the required belt tension & (2) extra drag, effectively sapping some RWHP. That makes sense to me. The dealer told me that one customer returned to chain from belt for those reasons. All things considered, I'll stick with the chain. That said, the belt conversion looks great to my eyes.
