The Triple is an all-new design, a liquid-cooled, dohc, four-valve-per-cylinder powerplant displacing 847cc. It's counterbalanced and naturally "crossplane," as Technical Editor Kevin Cameron reported in his web story on the concept. Like Triumph's three-cylinder engines, the Yamaha's three crankpins are spaced 120 degrees apart. "With this arrangement, there is zero shaking of the engine's center of mass and zero crankshaft rpm flutter caused by piston inertia torque. But there is a side-to-side rocking. In modern engines, this 'rocking couple' is canceled by a crank-speed balance shaft," wrote Cameron. The FZ-09 engine uses an even firing order.