UnityのWheel Colliderのチュートリアルをバイクで

SimpleCarController_mod.cs

public void FixedUpdate(){
	float motor = maxMotorTorque * Input.GetAxis("Vertical");
	float steering = maxSteeringAngle * Input.GetAxis("Horizontal");

	foreach (AxleInfo axleInfo in axleInfos) {
		if (axleInfo.leftWheel != null){
			if (axleInfo.steering) {
				axleInfo.leftWheel.steerAngle = steering;
			}
			if (axleInfo.motor) {
				axleInfo.leftWheel.motorTorque = motor;
			}
			ApplyLocalPositionToVisuals(axleInfo.leftWheel);
		}

		if (axleInfo.rightWheel != null){
			if (axleInfo.steering) {
				axleInfo.rightWheel.steerAngle = steering;
			}
			if (axleInfo.motor) {
				axleInfo.rightWheel.motorTorque = motor;
			}
			ApplyLocalPositionToVisuals(axleInfo.rightWheel);
		}
	}
}