Idiot seeks advice on questions you've already answered
After many years of riding bicycles but not knowing much about bike mechanics, I'm trying to learn more about the subject. I bought a chain wear indicator and have discovered I need to replace the chain on my Voyageur 11.8. Since the freewheel is original to the bike, I assume it also needs to replaced. Here are some questions:
1). Any recommendations on replacement parts?
2). What makes one freewheel better than another?
3). If you're replacing a freewheel, do you also need to consider replacing the chain rings/crankset?
Thank you.