A slipper clutch couples engine power to the six-speed transmission for some anti-backtorque protection with a tough, chain-type final drive. The YZF-R1's top speed is around 186 MPH. The new ride ...

Out of all these, the YZF-R1 and the YZF-R1M are two of the most ... They both have a 6-speed transmission, Bridgestone Battlax Racing Street RS11 tires, and a 4.5-gallon fuel tank.