I just bought a schwinn suburban from the late 70s off craigslist. It's in pretty good shape mechanically, but the tires are in pretty bad shape. You can see through the rubber on the sidewall in one spot on the front tire, the sidewalls of both tires are pretty cracked. I have a couple questions--
-do I need to replace the rear tire if it's just cracked? Most of what I'm finding is saying not necessarily, but since the front tire is in such bad shape and I think they're probably the original (30 year old) tires, it seems like probably I do in this case?
-assuming they are also 30 years old, should I replace the tubes as well, or are they okay if they hold air?
-am I taking my life into my hands if I ride it around the neighborhood this afternoon before I replace that front tire at the very least?