Standard crankshaft suitable for Puch 2-speed MS, MV, MV50, Puch X30 Velux moped / moped with manually shifted and fan-cooled Z50 engine.
Note: This crankshaft is not suitable for air-cooled Z50 engines of Puch X30 Sport NS/NL models.
This crankshaft was specially developed for use in original engines and is characterized by an excellent balance ratio and high speed stability. The solid connecting rod is also equipped with a more stable connecting rod pin with a diameter of 16 mm.
The needle bearing (12/15 x14.2 mm) is included in the scope of delivery.
Technical data:
Note: This crankshaft is not suitable for air-cooled Z50 engines of Puch X30 Sport NS/NL models.
This crankshaft was specially developed for use in original engines and is characterized by an excellent balance ratio and high speed stability. The solid connecting rod is also equipped with a more stable connecting rod pin with a diameter of 16 mm.
The needle bearing (12/15 x14.2 mm) is included in the scope of delivery.
Technical data:
- Crankshaft stroke: 43mm
- Piston pin diameter (B): 12mm
- Center-to-center rod length: 90mm
- Total length of crankpin on clutch side: 57mm
- Type of thread: MF10x1 (fine thread), MF8x1 (fine thread)
- Total length of crankpin on ignition side: 66mm
- Diameter of crank webs: 69.9mm
- Diameter of connecting rod eye: 15mm
- Diameter bearing seat (clutch side): 17mm
- Diameter bearing seat (ignition side): 17mm
- Dimension needle bearing: 12 / 15 x 14.2mm (axe 12)
- Width of crank webs: 34mm
- Length 1st heel: 20mm
- Length 2nd shoulder: 19mm
- Diameter 1st shoulder (clutch side): 17mm
- Diameter 2nd shoulder (clutch side): 15mm
- Length of shoulder (ignition side): 26.3mm
