Wao it a amazing bike no words for it its sound omg suoerb the one who has own yamaha has the world in his hand. Great work done by yamaha but now this bike is not sold in agencies. and this is not right company. Many of want this bike rather many other bikes also in market but this product is owesome. This bike has 100 cc engine and its has auto heat control function by it self yamaha rx 100 name is also too good. Rx stands for Ride Experience 100 times : ) gr8 work done by comapany. I have also my own rx 100