I bought Yamaha R15 - 2 yrs back. KM- 18000 and my bike is not at all looks like smooth riding. Petrol tank, handle bar and some other parts are all vibrating after 10000 kms onwards. I cant able to ride my bike more than 50 km/h. I have given service in almost all the YAMAHA service centres. But they said the bike is good and old R15 will give only this much smoothness.hey jus want to compromise the customer and I dont think Yamaha's service is good. My bike riding looks like Someother 100 CC bike. I cant feel the yamaha'... read full review »