Vespa PK 50 XL to 125cc BGM PRO Racing Crankshaft (for Reed Valve) Full Circle Web - 54mm Stroke 105mm Conrod Ø=20mm cone

Product Code: BD17247

£139.99

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Vespa PK 50 XL to 125cc BGM PRO Racing Crankshaft (for Reed Valve) Full Circle Web - 54mm Stroke 105mm Conrod Ø=20mm cone

The shaft has a stroke of 54 mm (series = 51mm) and has a 105 mm long connecting rod (series 97mm), which in its last evolutionary stage has now been widened to a proud 5mm thickness. The crank webs are larger in diameter (both sides: 87mm) than those of a series shaft (86.8mm). Therefore the crankcase has to be enlarged in diameter (spindle dimension 88mm).
The longer
connecting rod requires either a suitable cylinder or a corresponding spacer.

Short facts:

  • forged crank webs
  • 54mm stroke
  • Forged CNC connecting rod, 105mm
  • silver cage
  • lower connecting rod pin 20mm
  • bearing seat Lima side 20mm
  • Made in Europe
  • Approval for engines