I am using this bike since four months and I no issues related to this maintenance and some chain oil problem but regularly service must be important.
This Yamaha R15 series is the most amazing for looks, more comfortable on seat, and handling hard when turning the corner but overall best bike for those who are riding fastest sport bike headlight are also very focused center in evenings this r15 bike best in each and every field mileage are low this I am disappointed but I can manage overall it’s a sport bike