OCEANSIDE (CBS 8) - It hosts cyclists from more than 20 countries and is one of the most challenging, competitive races around.
Cyclists will ride more than 3,000 miles across 12 states and climb more than 170,000 feet while battling the elements before coming to an end in Annapolis, Maryland.
In this News 8 video report, Jeff Zevely has a preview of the big race.
