New answers tagged wheelset
As already stated by @Batman, the wheel of a Walmart bike won't be worth the effort. Do you have a local bike co-op, or a recycle center - you can probably scavenge a wheel of an old bike? Try to get in touch with a local cycle club or local cycle group - most cyclists I know have a selection of spares they would be more than happy to 'rehome' ...
First, note that if you're using indexed shifters that you need to match the number of cogs on the cassette to the shifters. Cheap wheels are normally not worth the money -- you'll have trouble keeping them true or from failing, especially in a difficult situation like mountain biking. On freewheels and cassette installation, I'd suggest reading this link ...
The wheel by itself will likely be of much better quality, as one of the main places costs are cut when building BSOs (bike-shaped objects) is in the wheels... so you will either have a few okay bike parts and some okay tools you can re-use or a lot of worthless bike parts. Your choice.
It's rare for a manufacturer to have different wheel sizes for the same model, but it does happen sometimes. Fortunately, it's easy to check the wheel size, it's always printed or embossed somewhere on the tires. Yours will probably say 700c or 622mm or 28 inch - these are all equivalent. One other thing you'll have to consider is the rear dropout spacing. ...
Wheel size will remain the same, which is 700c, The different sizes of frames will only effect the overall geometry. So yes, you'll be fine getting a replacement of the same stock size.
Top 50 recent answers are included