The shaft has a stroke of 45mm (series = 51mm) and features a 105mm long connecting rod (series 97mm) which has also been widened in its latest evolutionary stage to a proud 5mm thickness. The crank webs are larger in diameter (both sides: 87mm) than those of a series shaft (86.8mm).
As a result, the crankcase must be widened in diameter (spindle dimension 88mm).
The longer connecting rod requires either a matching cylinder or a corresponding spacer.
Shortfacts:
  • forged crank
  • webs
  • 45mm stroke
  • forged CNC connecting rod, 105mm
  • silver cage
  • lower connecting rod pin 20mm
  • bearing seat lima side
  • 20mm
  • AI-translation

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OEM numbers (for comparison purposes only)
Scooter Center:
VMC1055
VMC:
VMC1055
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