Just got 29.6 on my 10 roadking, only 500 miles on it, cat drilled out, cruise set at 85. Ouch hoping it will get better after a few more miles and i'm thinking about doing stage 1 dwnld and k&n filter don't know if this will help or hurt mileage but it will cool the motor down and won't run quite as lean.
I average about 36-38 MPG. I'd probably get better if I wasn't so heavy handed on the throttle. One of these days I'll ride it for mileage and see what I get.
08 ultra classic, stage 1, true duals with ovals, sert. was getting 37 to 45 had it dynoed know im geting about 30 in town 40 on h.w. i dont know why could be the fuel is set richer than before.