Crankshaft -MALOSSI (rotary valve) 51mm stroke, 97mm connecting rod- Vespa PK80 - 125 XL/2 (Ø 20mm cone)
High quality crankshaft from the name liable manufacturer Malossi for the 125 engines with the large cone and 20mm oil seal alternator side. The shaft is made of hardened steel (18 Ni Cr Mo5) and has been finely balanced with tungsten weights. The connecting rod is forged, burnished and provided with lubrication slots. Unlike the original shafts, the same thread is used on both sides and the nuts are included. The stroke with 51mm and also the connecting rod with 97 mm are kept original. Can also be used to convert 50cc engines to 125cc. The dimensions of the cheeks please refer to the details and possibly make adjustments to the housing.
(TW030123)