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1955 YB-1

Collection items

(1955 / Production Model)


This was the deluxe version of the YA-1. Its features included a slightly bigger (by 4cc) 2-stroke single-cylinder engine, a black-painted chassis, chrome fuel tank and a battery case, giving it the quality look and feel of a higher grade model. With the chestnut red YA-1 known as the “Aka-tombo” (Red Dragonfly), the YB-1 came to be called the “Kuro-tombo” (Black Dragonfly).

  • Overall length × width × height: 1,980mm × 660mm × 925mm
  • Weight: 95kg
  • Engine type: Air-cooled, 2-stroke, single-cylinder, 127cm³
  • Maximum power output: 4.3kW (5.8PS) / 5,500r/min
  • Maximum torque: 13.9N・m (1.42kgf・m) / 5,000r/min
  • Price: ¥145,000

*All figures, etc. in a model's description or specifications are from when the model was originally released.

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