I have R15 which has have 12 litre fuel tank.It gives average of 30kms/litre in city and 40kms/litre on highway.
It is more comfort rather than other bikes. beacuse of its seating design. It is more comfortable for riding beacuse of its shotness.
It is more accurate. It has a good pick up. I ride this bike at 119 on last gear. It more sufficient and easy toh use. Its maintainence is low cost.
It can easily be handled becuase of its design. It can be controlled by gear and easily by disk brake. It can be used very eaisly.
I like R15 very much beacause of it look. This is the bike which looks likes sports bikes and it has low price that any one can purchase.