Changing Wheels on a Schwinn Varsity
There is a free Schwinn road bike (I believe it is a 80's Varsity though may be a Le Tour) that I want to use around the city (Chicago). I'm pretty new to modifying bikes but I want to put bigger fatter tires on the thing. I believe that I am going to have to replace the wheels to do so and I assume there will be a lot more to it than that by the time I'd be finished. I've read what I could find online etc. but I am clearly unprepared. When I was a kid I had an old Schwinn mountain bike that I fixed up when I got hit by a car (back wheel and tire replacement, brakes gears etc.) but that's about it for experience.
Please educate me.