Hi, since I finally got a wheel thats suitable and he likes he hasnt chewed his bars, which I suspected was down to boredom
I don't know the exact size but id say its about half of a large radiator if that helps lol.
He seems fine I think, I havent seen him much as his routine is a bit all over the place after this, so trying to slowly adjust him again but ive woke up early in morning to him having a run on his wheel so know hes been active