This bike is powered by a liquid-cooled 599cc Inline-4 engine that’s capable of producing 122 horsepower at 14, 500 rpm.
Fuel injection makes for effortless cold starts and smooth power delivery. The 13.1:1 compression ratio is impressive relative to the average of all 2013 supersport bikes. A higher compression ratio is desirable because it means an engine can do the same amount of work with less fuel, leading to increased efficiency and power for a given engine size(the only downside is that using low octane fuel can damage the engine).
A cylinder bore and stroke of 67 x 42.5mm makes this motor oversquare: the bore(width) of the cylinder is greater than its stroke(length). Oversquare engines excel at revving high and producing a lot of power for their displacement, at the expense of low-end torque.