I have a barely used 16 tooth OEM sprocket of my 2006 Honda 919. I switched to a 17t and don't need the 16t anymore. It had 2500 miles on it when replaced. There is no noticeable wear at all.
New ones run about $30-35 shipped. I will take $15 shipped to your door, OBO. I'd rather sell it here than EBAY. I know a lot of us switch to a 15t for quicker acceleration, or a 17 for mellower freeway speeds, but maybe someone here likes the 16t for everything in between.
Not sure what other models this would fit. When I got my new one, it was cross-listed against 919's of all years, VFR750's from 1990-1997 and VFR800's 1998 and newer.
Since this sprocket is OEM, it is for a 530 chain.