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Naraku QMB139 Super Transmission Kit for 50cc 49cc Scooter

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Naraku Super Transmission Kit for 50cc QMB139 engines. Kit includes: Variator, Variator Drive Face, Belt, Torque Spring Base, Clutch and Clutch Bell. Choose from either belt length 669mm or 788mm in the drop down menu.
The 669mm length belt is for short case engines that use a 10" rear wheel.
The 788mm length belt is for long case engines, like are found on the Pitbull / Maddog 50cc Ruckus clone.

In stock (Only 7 left in stock)
  • $219.99
  • SKU
  • Roller Weight Size: 16x13mm (6g)
  • Variator Outer Diameter: 88mm
  • Clutch Drum Number of Splines: 22
  • Clutch Drum Spline Inner Diameter (peak to peak): 11.10mm
  • Sliding Torque Spring Base Outer Diameter: 118mm
  • Drive Face Number of Splines: 26
  • Drive Face Spline Inner Diameter (peak to peak): 13mm
  • Drive Face Outer Diameter: 113.7mm
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