If more power is what your looking for you can go down to a 11 tooth counter shaft sprocket if you haven't all ready. It's a quick bend but that might do it. I put a 12 tooth on mine(with a 39 tooth rear sprocket) once in a while for gorge riding. Slowed me down about 15 MPH to about 65 MPH. All kinds of power. As far as i can get it wound out in 6th gear. A quick bend like that is not optimal for a chain but it should work. IMO a 12 tooth is about as low as i would get. Unless your gonna be towing a lot of non Honda's around. Which actually could come in handy LOL.