Yamaha has just launched the all-new YZF-R15 v3 with an all-new 155cc engine with variable valve timing. This 19.3PS engine sits in a new frame, works with new suspension and has wider tyres to play with as well. Shumi took the new motorcycle out for a few laps, here's one of them. Remember that this motorcycle is completely stock but for one thing. The rear tyre in use the optional Metzeler M5 Interact radial that Yamaha sells as a Rs 10,000 (approximately) add-on. The stock tyre is a MRF Zapper-series bias ply tyre.