I have used this bike for 3 years and from my experience I have noticed few problems : first one is the missing of 5th gear if you use cb unicorn instead of cb shine you feel more comfortable than cb shine.The bike will vibrate in fourth gear when speed is over 55kmph. Second problem is also very serious one it have very poor road grip. When we apply sudden backbreaking the back wheel will start to slide towards a side. But there is no other serious problems from this bike mileage is good.