I am using Yamaha RX 100 bike from 2010. It is very comfortable bike to ride in city traffic. It is flat and straight bike and seat gives better grip to legs whenever I approach them towards ground . Its sound are awesome. It sound turns every head on road and even my friends recognize my bike’s sound when I reach college or class. Being an old machine, it returns me 35 km/pl average on city roads which is pretty much sufficient. I never use it for long rides and off road. so can not talk about its highway mileage overall, this machine is like old is gold u better know the meaning of this sentence.