2015 USA Pro Challenge stage 4 preview

The peloton will retrace their steps from the previous stage, heading back up the category 1 Independence Pass en route to Breckenridge. The route out of Aspen is quite a bit steeper than the previous day's ascent, and will likely be an opportunity for a breakaway to get clear as the overall contenders try to conserve for the following day's time trial. The race detours from stage 3 after Twin Lakes, heading through Buena Vista and Fairplay for intermediate sprints on the way to the other side of the Tenmile Range from the previous day's start. They'll head over the category 2 Hoosier Pass at 23.6 and category 3 Boreas Pass with 3.9km to go before dropping down for the finish in Breckenridge. At 202.5km, it is the longest stage of the race.

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