I couldnt tell you what cage it is id have to find it again online, but he hasn't been chewing the bars since I got this new wheel! Which is excellent. I did think he was bored when he was doing it. It turned out his wheel was too small and I didn't know about back arching, I felt so bad
I ordered him a new huge wheel which didn't fit in the cage. Then a smaller one after that was still big. I then changed his cage to the bigest one I could find and just put the other wheel back in as he didn't seem to be using the other one. Hes been on it loads, I feel terrible as I was quite irrisponsible, luckily he is happy with his cage and wheel now it just sadly took a while...
The cage is fairly large, about half the length of a big radiator if that helps lol
So the bar chewing has been practicly none lately.