PARMAKIT reinforced crankshaft, cut in best steels and well assembled, the crankshaft has a 54mm long stroke to increase engine displacement, torque and power, the connecting rod is 97mm original size, you must use a wedge 1,5mm under the cylinder if it is not adapted to a long race 54mm. In addition, the diameter of the mass is increased to 87mm for a better engine inertia, but also, the increase (also Appellees bristles) are Ø 20mm, it faudrat you use the appropriate bearings to seat diameter 20mm! Ideal with a motor home or a large kit! Good balance! Admission to a Model valves!
Itself on:
-VESPA 125cc ET3
-VESPA 125cc ETS
-VESPA 125cc PK
-VESPA 125cc PRIMAVERA
-VESPA 125cc XL