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Crankshaft - Stroker Crankshaft Hoca QMB139 > Part # 169GRS239

  • $ 18999


Grand Rapids Scooter's Hoca 44mm Stroker Crankshaft Assembly for 50cc 4-stroke QMB139 engines.

Supported Models: Bintelli, Tao Tao, Peace Sports, Wolf, Schwinn, Puma, SYM, Alliance, Motorino, and Kymco.

Specifications: 

  • Overall Length: 247mm
  • Thread Size (tapered side): M10x1.25
  • Thread Size (spline side): M12x1.25
  • Bearing Outer Diameter (tapered side): 42mm
  • Bearing Outer Diameter (spline side): 47mm
  • Number of Splines: 26
  • Connecting Rod Inner Diameter: 13mm
  • Number of Teeth (oil pump drive gear): 16


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