thanks for the help guys and girls. it was spring cleaning last week ,i found a bmx bike with wheels in the trash.i took the bmx sprocket and put it on my puch.
it would not come off no matter how hard i beat on it. so i cut it and split it off the wheel then screwed on the bmx wheel then i took it apart so i could lube it.
this is going to great because i love to peddle sometimes but the stock low gearing is about worthless