Okay okay okay, I know this may turn into an oil/religion/gun control threat and that I'm opening up a huge can of worms. I have owned shaft drive and belt drive bikes for the last 20 years. My F700GS is my first modern bike with an o-ring chain. I now have about 1200 miles on it and had the first service done back at 650. Every 200 miles or so I've cleaned the chain with an o-ring safe cleaner and grunge brush and then lubed it with Moto-Pro brand (PTFE/moly) dry chain wax. I ain't had a dry riding day since buying this bike! I know there are many opinions on what kind of maintenance is needed and what products to use. I'd like to know what others are doing to "our" bikes. That being the F series BMWs. How long, with normal riding, can I expect a chain and sprockets to last? What brand of chains and sprockets do you recommend? So there it is. Rant, flame on, serious discussion, smart ass answers, or good information.