I get a little over 50 on the highways and about 45 on the streets. What bugs me is that my gas light will light up after 75 miles of street riding, but on the highway is won't light up until 135.

 

high 30's around town, low 50's highway. Light comes out about 110 on city miles, I have yet to ride long enough for it to come on on the highway I have been at about 140 miles and no light.

 

just rode 315 miles today. averaged 54.7 the whole way

 

I have an 06 1200C and my son has an 05 1200C. We went on a 500 mile ride over the week-end and we noticed that the mileage on our odometers did not match. He was 7 miles more than me for every 100 miles we rode. The amount of gas purchased was just about the same. Well hell, if that be the case with all Sportys then no one wonder gas mileage is so different.