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Stage6 Crankshaft HPC MKII (Aprilia, Piaggio, Vespa 50)

Stage6 Crankshaft HPC MKII (Aprilia, Piaggio, Vespa 50)

Description: Stage6 Crankshaft HPC MKII for Aprilia, Piaggio 50, Vespa 2-stroke engines. The Stage6 HPC (high primary compression) crankshaft is a full-circle crankshaft and as such increases primary compression in the crankcase. It has been developed in cooperation with F. Koopmans and is completely made of metal (i.e. no plastic padding). The bearings can handle up to 16,000 rpm! Made in Italy.

NOTE: This does not include crank bearings, sold separately.

Temperature Modification May Be Required: You'll need to heat the aluminum crankcase area where the crankshaft bearing side will be placed, in order to fit immediately the freezing Polini Crankshaft bearing side. Users assume full responsibility and risk doing so using this Polini Crankshaft.


Includes the following Crankshaft and Wrist pin bearing.

•    Overall Stroke: mm
•    Wrist Pin: 12mm
•    Full Circle Crank
•    Made in Italy
•    Fit Aprilia 49/50cc
•    Fit Piaggio 49/50cc
•    Fit Vespa 49/50cc

Supported Models: Aprilia Mojito, Aprilia Scarabeo 4T, Aprilia Sport City One, Aprilia Sr R Factory, Aprilia Sr Street, Piaggio Fly, Piaggio Typhoon, Piaggio Vespa, Various unlisted makes/models

Item Weight & Package Dimensions:
•    3.33 pounds | 10.5" (L) x 5" (W) x 3.5" (H)

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Stage6 Crankshaft HPC MKII (Aprilia, Piaggio, Vespa 50)
  • Stock: 40
  • Reward Points: 7
  • Part #: S6-8014001
Sold: 0
Views: 920
Price in reward points: 192