I have a friend that went to ride the Tail of the Dragon in TN last month. He is an experienced rider and rides a Harley Road King. He said that on numerous occasions, sport bikes would fly by crossing the yellow line passing him in both directions at unbelievable speeds. There are 318 curves in the 11 mile section of road. When riding you definitely need to pay attention to the road ahead and stay in your lane. Many people find all the curves quite scary. He said it was the sport bike riders that scared the hell out of him.