I am using RX 100 from 2008 it is very comfortable bike to ride in city traffic.its flat and straight seat gives better grip to legs Wheneever I approach them Towards ground.its sound turns every head on road and even my friends recognize my bike’s sound When I reach college. Being an old Machine it returns me 41 kmpl average on city roads Which is pretty much sufficent While, I never use it for long rides and off-road.so I cant talk about its highway mileage. overall, this machine is;ike a "old is gold’ I love RX 100