4 Valve per cylinder, counter rotating crankshaft, semi dry sump, liquid cooled 4 Stroke 16 Valve DOHC, Inline 4, Liquid Cooled ...
A year ago, Aprilia brought a concept to EICMA – a neat looking 660cc sportsbike built around half an RSV4 motor, with some weird active aerodynamics. Concept bikes usually get most of their fun bits ...