Abstract: A vehicle is configured to travel, when a vehicle velocity is within a velocity range from not less than a first velocity of at least zero to not more than a second velocity larger than the first velocity, in a mode in which a vehicle body is leaned by a lean mechanism according to an input into an operation input unit, and a wheel angle of a turn wheel changes following a lean of the vehicle body. A natural frequency of roll oscillation of the vehicle body is either within a range of smaller than a reference frequency or within a range of larger than the reference frequency, the reference frequency being a frequency at which oscillation of the wheel angle of the turn wheel has phase delay of 90 degrees relative to the roll oscillation of the vehicle body in its width direction.

Abstract: A vehicle is configured to travel, when a vehicle velocity is within a velocity range from not less than a first velocity of at least zero to not more than a second velocity larger than the first velocity, in a mode in which a vehicle body is leaned by a lean mechanism according to an input into an operation input unit, and a wheel angle of a turn wheel changes following a lean of the vehicle body. A natural frequency of roll oscillation of the vehicle body is either within a range of smaller than a reference frequency or within a range of larger than the reference frequency, the reference frequency being a frequency at which oscillation of the wheel angle of the turn wheel has phase delay of 90 degrees relative to the roll oscillation of the vehicle body in its width direction.