Levi, no Lance, at Leadville 100 on Saturday

Published Aug. 10, 2010 at 4:04 p.m.

Defending champion Lance Armstrong will not return to race the Leadville 100 on Saturday, but his RadioShack teammate Levi Leipheimer will be making his debut.

Also on hand for the mountain bike race will be David Wiens, the 46-year-old winner of six Leadville 100s from 2003 to 2008.

The Leadville is one of the most storied mountain bike races. The course is 100 miles long and all takes place above the 9,000-foot level on mostly dirt and gravel back-country roads in the vicinity of Leadville, Colorado. It was the subject of last year's documentary, Race Across the Sky (left).

While many enter the event (some 1,500 registered this year)...

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