QUICK bike tune up advice needed!

[Geonz]

Welp, the League of Illinois Biking has as a daily check the "A B C CHECK" -
http://www.dot.state.il.us/bikemap/safekids/p5.pdf

(yea the directory says "safekids" but this is their "adult cycling" pamphlet)

You might have to zoom in a litlte

Oh, and could you put the wheel from one bike onto the other bike? (I did that when I messed up my front wheel earlier this week.) Prob'ly not with the wear issues.