The best I have ever gotten was 47 on a 180 mile trip mostly at a steady 60 with a few miles stop and go at the beach and that was 2 up. Typically my interstate riding is 75-80 and get 42-44 solo, my around "town" is 40-42. But I use regular 87 and NO pinging at any RPM or speed.

 

[QUOTE=orbiker;8904627]Quicker is what I am after. This 6 speed tranny is one of the reasons why I bought this dyna in the first place. It opens up alot of gearing options that weren't really practical with a 5 speed. Not that you can't gear down a 5 speed bike it's just that fuel and range would be affected. I like that the bike can be a light to light beast and still get respectable mileage at highway speeds. I have read about the 30 tooth costing you top end speed but I think with the 6th gear that will bring my revs into the sweet spot of the motor closer to my typical cruising speed(55-65 in 5th and 65-80ish) in 6th. Does anyone know the speed vs rpm with the stock 32 tooth and the 30 tooth sprocket.

 

I too haven't noticed any engine knock with regular on my bike and if all the fuel here was ethanol polluted I would just run regular however premium is pure fuel here so for that reason alone I use premium. Believe it or not regular gas has more btu's then premium fuel does. Therefore there is more energy per drop which is also why in high compression/timing advanced motors it pre-ignites.

 

I am lazy to read all the posts, but I have made an error, so I want to share with you.
After replaced the stock exhaust and A/c with Fuelmoto power package, I get around 35, or lower gas mileage. Turns out, there was a leak in my exhaust system during the installation. Fixed the leak, and I get around 40 in city, and 45 on highway, even 50 MPG on high altitude. My bike is 2010 103 ci., so your bike should have the same or better mileage than mine.
Hope this help

 

Wow. Something as simple as an exhaust leak can cost you anywhere from 5-15 mpg. Damn.