New Yamaha bike price starts at 9000-10000$. The previous-gen R15 was a bit down on low-rev grunt. The R15 v3.0 gets a new and slightly larger 155cc liquid-cooled four-valve motor with more performance in the low range. While it still remains a high-revving engine, it comes with Variable Valve Actuation (VVA) that changes valve lift post 7400rpm for better top-end grunt. This allows engineers to run two valve timings: one for better low-speed grunt and one for better top-end.