Four Valves Per Cylinder Air/liquid-cooled four-stroke flat twin engine with double overhead and chain driven camshafts (BMW ShiftCam) and balance gear wheels ...

Four Valves Per Cylinder Air/liquid-cooled four-stroke flat twin engine with double overhead and chain driven camshafts (BMW ShiftCam) and balance gear wheels ...

BMW mounts the bike's six-speed sequential transmission transversely too, and its output drives the rear wheel by way of a ... perfect primary and secondary balance. This inherent smoothness ...