Originally Posted by Iride01

On Amazon, IMHO... you have a better chance of getting what is essentially something others will call a Walmart bike. Sure there are some good bikes, but more crap bikes. Are you experienced enough to know the difference?

If bikes at the local bike shops are out of your price range then look at the online retailers that sell only bike stuff. Even Bikes Direct will be a decent choice IMO than Amazon where you don't know much if anything about the vendors that sell on Amazon.

Ride what you have till it falls apart or you get in such decent shape that you know it's holding you back. By that time you'll have a better understanding of what you really need in a bike.

Don't know why you need quick release wheels. Through axles which are becoming very common now don't take much more effort to remove.