Chris Horner

Chris Horner of the USA and riding for Team Radioshack climbs Sierra Road enroute to winning stage four of the 2011 AMGEN Tour of California from Livermore to San Jose on May 18, 2011 in San Jose, California. (Photo by Doug Pensinger/Getty Images)

Chris Horner Takes Lead After Stage 4

With a quick uphill burst, Chris Horner of Bend, Ore., rode away from teammate Levi Leipheimer in the final two miles and pedaled into the race lead at the Tour of California on Wednesday.