i have that wheel and it's so noisy i'm on my way to the silent spinner, but wowza is that an expensive wheel. gonna price match it at petsmart though for like $17, so i guess that's pretty good. i attached that first wheel to the cage side, but it's so close to the bars that it rubs on them and it's ridiculously irritating, esp since my girls sleep at the foot of my bed.
I just bought a wodent wheel. It looks great and safe, although you cannot attach it to the cage. I will post how my girls like it once I have it set up in the FN and I see them actually using it. ( hopefully!)
that's the one i use. i like it fine. you easily detach the wheel from the stand at night so you can sleep. its what i did when the rats were in my room. my first wheel lasted about 2 years before it started to hold odour. so not too bad an investment for $20. and my girls have gotten a lot of use out of it. they all use it, some more then others. i like it that i can attach it to the side of the cage and free up some floor space for them to run.
i would feel bad taking the wheel out at night since it's the only time picasso uses it, lol. XD
changed my mind to the wodent wheel, and i read that someone *did* get it attached to the cage with zipties, so yay.
and i do like that first wheel, i can oil it and the wheel itself is noiseless, but it rubs on the bars so i'm going with the wodent. i think it's a personal preference really, and it depends on how it sits in your cage. and of course, whether your rats even use it at all.