OK, so we hit 17 degrees last week, and I ride year-round. I go out to the bike to start the warm-up, and the 6 month old beast just wouldn't start. It was turning, just not starting. I thought immediately "must be the battery." Couldn't get it to jump, either. Gave up, and put it on the trickle charge that night. The first couple of hours, it showed it was working, so I went to bed. The next morning, the charger showed "fault." Well, I thought maybe it was full, so I tried to no avail to get it to start, again. I tried the quick-charge, and it immediately went to "full," then back to "fault." So I give up and call the dealer, and they want the bike in. I said "well, if you come help me push-start this 850 pound tank, then I just might be able to get it in..." He agreed to just see the battery...lol. Well, the battery tested out just fine. He looked me up in the comp, and came to a startling discovery... A few months ago (during summer) when they did my inital 1000 mile oil change, the idiots put 20W50 oil in it!!! I tell the guy, as I told them at that time, "that makes no sense, I ride year-round." So, all this for one lesson, if you have trouble getting started in the winter, don't rule out the option of maybe it's your oil!!!