Exact reproduction of the original crankshaft as used in the first Vespa engines with rotary valve control (VBA1T, VBB1T, VBB2T, VNB1-6T, Tour/T4 (VGLA, VGLB), VLA1T).

  • Stroke: 57mm
  • connecting rod length: 105mm
  • bottom connecting rod pin: Ø18mm
  • upper connecting rod eye: Ø15mm with needle bearing
  • Inlet control: rotary valve 2% (1:50)

Has a needle bearing mounted connecting rod and thus replaces shafts with connecting rod bushings (e.g. VNB models). Can therefore be run without problems with an oil ratio of 2% (1:50).

High quality version from Tameni, Italy.

(US050319)

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OEM numbers (for comparison purposes only)
Piaggio:
131321, 86657, 89267, 91060
Scooter Center:
3330038
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