Yamaha YZF R15 2.0 review. If you’ve been waiting for the new Yamaha YZF R20(rumoured successor to the R15), you’ll be disappointed with the launch of the R15 2.0. Because other bikes like the Bajaj Pulsar 220cc and the Hero Karizma 223cc had crossed the 200cc mark even before the first R15 was launched back in 2008.