Suzuki launched its Gixxer in India which is a youths choice bike. It has also won many awards. It has got the bike of the year award many times. Now talking about its specs, it is powerd by the suzukis 155cc ultra light robust engine which gives out 14.5 nm of tourque and 14bhp of max power. The seating position of this bike nor too sporty but you can have an upright position, which will be comfortable for many kilometers.
Talking about its milage, then this bike will give you around 45 to 48 kilometers per liter ( according to your driving style) . If you buy its Fule Injection varient then you can have more milage.
The bike is comfortable, it has a well coushioned seatings. Which is good for long rides. But the pillion seat is not too comfortable. There is no space for extra lugauge instead you can put a saddle in it.