The new three cylinder Benelli version is available in four versions (actually five), three for the Series-S and two for the Series-R models. Horsepower figures start from around 100hp and reach 172hp. The horsepower difference is achieved by altering the mapping of the ECU, changing the compression ratio and the camshaft timing. The diameter of the throttle bodies as well as the size of the injectors remains the same at all engine applications.