CONTROL DEVICE, VEHICLE, ESTIMATION METHOD, AND STORAGE MEDIUM

The present invention provides a control device that controls a suspension mechanism of a straddle type vehicle, comprising: a wheel speed sensor configured to detect a wheel speed of the straddle type vehicle; an estimation unit configured to estimate a stroke speed of the suspension mechanism, based on a change in the wheel speed detected by the wheel speed sensor; and a correction unit configured to correct the stroke speed estimated by the estimation unit, in accordance with a circumferential length of a grounding part of a tire changed by turning of the straddle type vehicle.