I took mine OFF for the winter but now I have no idea how to UNLOCK the piece attached to the tire it just keeps spinning and spinning I need it off so I can then place the RACK BACK ON please any ideas
Are you talking about the hand knob? If the hand knob is locked it will just keep spinning without loosening. You have to use the key and move it to the unlocked position in order for it to loosen. www.etrailer.com/Spare-Tire-Bike-Racks/Thule/TH963PRO.html