Importance

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Abstract

A straddled electric vehicle includes a power transmission mechanism that transmits driving power from a motor to a rear wheel. The power transmission mechanism includes a rear wheel shaft including spline grooves on its shaft surface, the spline grooves being inclined relative to an axial direction, a second gear including spline grooves engageable with the spline grooves, the second gear being capable of exchanging a rotating force with the rear wheel shaft, and an elastic member capable of biasing the second gear attached to the rear wheel shaft to the right. The spline grooves are inclined so as to move the second gear to the left when the rear wheel is rotating in the direction causing the straddled electric vehicle to advance and the second gear works to maintain the speed of rotation of the rear wheel as the speed of rotation is decreasing.

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First Claim