To provide a motorcycle capable of improving the safety and the stability when the motorcycle runs.
A pair of side wheels are provided on a front wheel side edge of a motorcycle. A front bottom frame, a turn-interlocking unit, a side edge suspension unit and a side wheel unit are separately provided on a frame of the motorcycle. An interlocking component of the turn-interlocking unit and a turning rod set are pivotably provided at the center of the front bottom frame, and a pair of connecting rods of the turn-interlocking unit are pivotably provided on a main seat of the side wheel unit toward the side edges. The side edge suspension unit has an adjustment frame and joined between the front bottom frame and the side wheel unit. A suspension is provided between the adjustment frame and the main frame of the frame of the motorcycle. A main seat of the side wheel unit is further pivotably provided on the side wheel. The safety and the stability when the motorcycle runs are enhanced by the assistance of the side wheels installed on the sides of the front wheel.
Hideo Sugiyama
Koichi Yuda
Uozumi Takahiro
Naohiko Teshima
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