chain drive

I keep having problems with chain tension and chain slapping and my sprockets getting chewed up . looking again to change both sprockets and chain, but thinking maybe changing the sprocket size from the stock 16/47. I do about 80% of riding on pavement at 50 to 80 miles per hour. I saw some...

I have been kicking around the idea of getting an adventure bike for a 2nd bike. The question I have is what type of final drive is best? I haven't had a bike with a chain since the 70's. What type of maintenance can I expect from a chain and sprocket drive? I also see that BMW makes or made...