Ok, so forgive me if I don't get this all right, I'm pretty new to cycling and am slowly learning about bike maintenance. I had to have my chain replaced this year after about 2500 miles. I know that is probably normal, but it got me thinking about taking better care of my components. In looking at my bike, the cassette/chain/front rings (I have a triple) are really dirty. I have white lightning that I use on the chain, but when holding a rag against the chain and spinning the pedals, it never got rid of all the black gunk. Is that normal? Do I need to be using something else? My middle ring in the front is exceptionally gunky. How do I clean that and the cassette? Also, I'm confused about degreasing and lubing. What is the difference? So much to learn!