Hello guys! If my english is funny, please excuse me, I'm not a native speaker. I was driving home from work two days ago, when all of a sudden the bike started slipping around like a drunk prom queen. I nearly fell on my ass, but skill and luck of epic proportions saved me. I looked around for oil spills, and quickly discovered that the entire back wheel was completely covered in oil. The oil came pouring out from beneath the gear box, so I quickly turned the key and sat down. I looked at the oil drain plug, and it was intact, and sealed. On a side note, I did a wheelie on cold engine to impress some young girls, don't know if it worked though, cause I kept going for another 500 meters before the incident occured, or atleast that was when I noticed it. I have pictures of it, but not right here. I do realize its a long shot, but any of you have any ideas as to what might be broken?