R WORLD - YOUR STREETSThe 2017 R1S features much of the same technology built into the R1 and R1M but with minor changes that make it the bike of choice for canyon carvers and commuters.Features may include:Cutting-edge MotoGP®-Derived Crossplane Crankshaft EngineThe 2016 YZF-R1S features a lightweight and compact crossplane-crankshaft, inline-four-cylinder, 998cc high output engine, producing excellent power and a strong pulse of linear torque for stunning performance.