Hero spelendar I smart engine sound very bad.few people this showing sond quality very poor or engine very hitted and engine power less not 9.4 ps engine beacuse 9.4 ps engine power 100 cc bike power engine similar haidrolic not soft.very hard haidrolic.but millage is good.switch quality very chip.i run 80 km in one day in this bike, so I see this engine sound is very faid or louded like villiar engine.light is very poor.35w only. thats not good but hero all bike light 35w its true.this bike build quality is very poor.please dont buy this bike.this bike not a heavy wait.ur money is losted for buy this bike.only one side is good thats milage but all side is very very bad.this bike looks satisfactory not so good.i forget it, handelling not soft.i want say thats not comfatable bike.so I am not ready for this bike rating 5.i give the rating 1 for this bike build quality isue.wrost bike dont buy it.