700c is the most common road size though I have never seen tires or tubes at a wal-mart or target, even ones which carried the road models. You have to go to a bike shop or online. You may not find an identical tire but you will easily find an interchangeable one. Of course, 700cX25 is quite common but you can go bigger or smaller (X23, X28, etc), limited only by the need to have the tires fit in the frame and avoid snakebite flats. Which brings me to:jcrarela said:If anyone is kind enough to answer, can I easily buy the tires that the Varsity is sporting at any bike shop? I'm worried I wouldn't know where to turn to once the tires start giving up.
If the bike went flat after sitting a while, you need to make sure the tires are at proper pressure.
I had clips and straps. I never got used to them except with certain pointy, smooth soled shoes (dress shoes) which you don't really want to be seen riding in for fear of looking odd. I got SPD-style mountain bike pedals and shoes.
I looked into the varsity but went with an old, used Schwinn which is actually simpler and lower tech than the new varsity, but added SPD pedals. They are a great, easy to use addition.