Here is what you need to know: We’ll start with the engine. Like we said above, the FZ-10’s cross-plane engine is based on the mill in the current YZF-R1/S/M. But there are some differences. Internally, engine components that in the R1 are made of high-tech titanium and magnesium are ditched in an effort to reduce costs in the FZ-10. About 40 percent of the internals have been swapped out. But they aren’t necessary in an engine that is designed to offer more low-down response, rev less, and doesn’t focus on top-end bang on a racetrack. Intake ports, valves, combustion chambers, camshafts, and a revised lower compression ratio (12.0:1) have all contributed to a broader rev-range according to the bLU cRU. Yamaha claims a peak output of 158 horsepower. Also contributing to the more street-friendly power delivery, the final drive got a two-teeth bump on the rear sprocket.