Racing Crankshaft MAZZUCCHELLI disc valve stroke 51,0mm conrod 97,0mm Standard - con rod Connecting rod bearing: 15x19x20 mm pin 15mm cone 20/20mm, M12 Ø Oil seal seat on flywheel side: 20 mm
MF0032 - ALBERO MOTORE ANTICIPATO MAZZUCCHELLI VESPA 50 SPECIAL R L CORSA CORTA