Abstract: A bicycle rack adapted to be detachably mounted to a passenger vehicle via a standard trailer hitch with the bicycle rack having a vertical support pivotally connected at one end to a base assembly with an upper crossbar assembly pivotally connected to the other end via a removable and reversible crossbar bracket on which a clamp arm is removably mounted. A pull pin releasably locks the vertical tube in an upright position to the base assembly and another pull pin locks the upper crossbar assembly in a horizontal position to the vertical support. Spacers may be removably inserted in downwardly depending flanges of the base assembly to mount it to a relatively narrow trailer hitch.