About the increase in number and severity of crashes in professional cycling. A quote I found interesting:
"After crashing with steel-frame bikes 20 years ago, uninjured riders could often straighten their handlebars and ride off. But bike frames today are made of extremely light carbon-fiber composites that frequently shatter in even minor spills.
Although the U.C.I. requires that bikes used by professionals weigh at least 14.9 pounds, that has not led to more robust equipment. Most teams resort to inserting lead weights or chains in the frame to reach the minimum. McQuaid said the cycling union was examining video supplied by the Tour de France to see if fragile bikes were adding to injuries."
NOTE: The quote above is not the conclusion of the article, and only one of many things which may be leading to increased injuries.
The link: http://www.nytimes.com/2011/09/25/sp...ng-danger.html