The Testastretta Evoluzione engine is the crowning glory of our development and the perfection of the L-Twin engine. World Superbike dominance for almost two decades is the result of continual commitment to our twin-cylinder configuration. We now share the reward for that commitment with World Championship-winning technology constantly flowing from the factory race team into our production engines.
Volumetric efficiency through the four valves per cylinder is optimised with valve diameters at 43.5mm for the inlet and 35.5mm for the exhaust.
Volumetric efficiency through the four valves per cylinder is optimised with valve diameters at 43.5mm for the inlet and 35.5mm for the exhaust.
