I can't get past the belt drive. It's so prominent, and for what?. Call me an old fart but, belt drives are the answer to the question no one asked. This too, hopefully will pass, like the rubber cam belt.
As far as belt drives go i had one on my 440 Kaw, quiet, reliable, and maintenance free. Downsides? I dunno.Robert.
They're long lasting, don't stretch as much as a chain, quiet, and don't spew oil all over the place. Pretty good trade-offs for the one weakness that I know of: You can't use them for off road riding. Get a piece of gravel between the toothed pulley and the belt and it'll snap the belt. Cheers,Dan K.
Was that pebble to close to a vital organ to remove? Bike evolution being the way it is, dictates that if the belt was truly better all bikes would have it. How many are sporting the belt? Mostly cruisers? If you are the type of rider that may dissolve in oil it's a must have.