Sirio S12 T3 EVO4 STI Ceramic bearings
Sirio Engines have announced that their new S12 T3 EVO4 STI engines will include ceramic ball bearings in both the front and rear of crankcase. The use of ceramic balls is said to provide better reliability and performance of the engine and these bearings use only the ceramic balls, which makes them also extremely light. Available seperately, they can also be used in all of the company’s S12 T3 engines that have a 12mm crankshaft.