if you want to use the wheels then thats you. i just dont think it was a good idea to post pictures of something that can be dangerous or deadly. thats the issue i have with what you rigged up. like i stated before, i happen to care for the safety of members here and what you have postes shows you obviously dont. i have seen people injured from contraptions such as yours and it scares me like i stated many times before that some kid with not enough common sense to know something dangerous when he sees it, will actually try what you posted and get seriously hurt. i see that you still havent addressed the safety issues i have and from the picture culpeper posted above shows you dont care much for safety. a disclaimer isnt going to keep a kid from getting hurt.