We picked up our new Ranger today and while we were going over the boat with the salesman I asked him if the middle plastic cap ever falls off as they look a bit flimsy. He took one off which came off very easily and he them put it back on. Well when we got home with boat that cap was gone I called up salesman and he has a new one on its way. Do any of you with these wheels leave the cap on or take them off or did yours also come off. Thanks in advance for any replies.