How is your gas mileage? I have ridden about 400 miles so far and recently got a odometer on my bike. After about a week of riding I would say I get around the 60-70mpg range, not quite the 100-150 as described by some sellers. I am about 185 pound guy on a Schwinn Point Beach cruiser. I can get about 30 miles per hour at top speed and usually run about 23-24 miles per hour on my way to work each day. Any recommendation on better gas mileage (lose weight is not an option) would be appreciated. Is the 100-150 MPG's only reachable for a 100 pound person going 14 miles per hour?