Tour de France
Bicycling competitors will cover about 3500 km between London, Great Britain and Paris, France. This link illustrates the demanding route and individual stages.
Up-to-date information on the Tour de France can be found at the official site.
Metric Biking Events
Cycling tour information for Paris and other European locations can be found on Q. May's page.
The Metric Century is a 100 km bicycle challenge ride.
Visit Cycling News for techniques that customize cyclist positioning to improve performance.
Determine Bicycling Speed Math.
Course Measurement and Certification Procedures, USA Track and Field Road Running Technical Council.