Crankshaft -VMC RACING (for diaphragm intake) full cheek 45mm stroke, 87mm connecting rod- Ø 20mm cone - Vespa V50, PK50 - used e.g. for cylinder VMC Racing 100cc RVA

VMC Racing crankshaft for Vespa V50/PK - 45 mm stroke, 105 mm connecting rod, Ø 20 mm cone

The shaft has a stroke of 45 mm (standard = 51 mm) and features a 105 mm long connecting rod (standard 97 mm), which has also been widened to an impressive 5 mm in its latest evolutionary stage. The crank webs are larger in diameter (both sides: 87 mm) than those of a standard shaft (86.8 mm).

This means that the diameter of the crankcase must be increased (spindle dimension 88 mm). The longer connecting rod requires either a suitable cylinder or a corresponding spacer plate.

Shortfacts:

• Forged crank webs
• 45 mm stroke
• Forged CNC connecting rod, 105 mm
• Silver cage
• Lower connecting rod pin 20 mm
• Bearing seat Lima side 20 mm