We all know there are limits, but sometimes it's hard to judge just how close we come to the edge.
Now, Metzeler offers help in the form of its new Sportec M5 motorcycle tire. There are lean indicators carved into the shoulder of the rear tire that will help you determine just how far over you've had your bike — after the ride, of course.
Markings numbered one through five are placed at lean angles of 25°, 30°, 35°, 40°, and 45°. Beyond that, you should be using pure race tires — and you should be on the track. To read the rest of the article: http://cmgonline.com/content/view/2181/51/