CERTAIN MASTERLOCK BIKE CARRIERS, MODEL 2868AT, SOLD FROM JANUARY 6 AND JULY 8, 2005. THE BIKE CARRIER HAVE A VERTICAL SUPPORT TUBE CONNECTED TO A HORIZONTAL TUBE WITH A PIN. THE VERTICAL SUPPORT TUBE MAY BREAK IN THE AREA WHERE THE PIN GOES THROUGH THE TUBE. IF THE VERTICAL SUPPORT TUBE BREAKS, THE CAR CARRIER MAY DISENGAGE FROM THE VEHICLE, AND THE BICYCLES CAN FALL ONTO THE ROADWAY. THIS RECALL DOES NOT APPLY TO PRODUCT NUMBER 2868AT BIKE CARRIERS SOLD IN 2004. THE 2004 MODEL BIKE CARRIER DOES NOT HAVE A GUSSET AND HAS THREE TIGHTENING KNOBS. THE 2005 MODEL – THE VERSION WHICH IS THE SUBJECT OF THIS RECALL – HAS A GUSSET AND TWO TIGHTENING KNOBS.