Abstract: Apparatus for restricting the motion of a motorcycle while it is being carried by a pickup truck or similar vehicle is disclosed. Such vehicles are of the type having a bed which includes a horizontal load-bearing portion and one or more sidewall portions. The motorcycle is provided with a luggage rack or similar rear-mounted load carrying member. The apparatus of the present invention provides a substantially vertical strut mounted to the vehicle bed proximate one of its sidewalls. A transverse hook member is attached to the top of the vertical strut. The free end of the hook member has an upwardly opening hook contour. The rear portion of the motorcycle is lifted and the rear-mounted load carrying member engaged with the hook contour along the side of the motorcycle near the strut. The rear wheel of the motorcycle is thus maintained in a raised position relative to the horizontal portion of the vehicle bed, and the lower extremity of the rear wheel is biased against the vertical strut.