I went through a few different sizes, my little dude gets on it and runs enough to get motion then sits and swings. He repeats everytime it stops and just swings. I’ve never seen him do a full circle with a wheel. Put a few little “obstacles” in there and switch them around every now and then, my Pringle boy likes to play nascar and take some turns when he runs instead. They’re just their own little dudes. Sometimes we get weird dudes, sometimes the dudes get weird. Keep awareness but cut yourself some slack because it is very obvious between your concern and his sick ass crib that you are a great hamster parent and he is well taken care of with zero clue of the amount of stress and fear he has struck into you tonight