Aren't you afraid of throwing stones at the windshields of cars (or other bikers?) behind you? That's what the fender is there for. Just a thought.
Tell that to all the a-holes with tall vehicles (jacked up pickups, jeeps, SUVs, etc) who don't have mudflaps.
Mudflaps are required per the CA vehicle code but it's apparently unenforced.
I've had 2 chipped auto windshields, dings in my visor, and a busted headlight on the 750 from kicked up rocks.
/rant