Pro-oiler
 

My dealer installed the pro-oiler because I bought it together with the bike. He did a good job, the only thing I'm not completely happy with is the oil line to the chain, will maybe change that. Works very good, you can adjust the amount when the roads are wet. When dry it gives you just enough oil depending on the distence you travel (no time or gravity dependence).
http://i42.tinypic.com/1tafyd.jpg
http://i39.tinypic.com/6eghi0.jpg
http://i43.tinypic.com/2vhwv1x.jpg