I wonder if any of the East coast locations do something like this?
If they don't, they SHOULD!
The Burner is a 12-hour endurance downhill (extreme) mountain bike challenge geared to sport-, expert- and pro-class mountain bike riders. The race will start at 9:00 am on Saturday, October 10th, and finish at 9:00 pm. The winners of the challenge are determined by total number of laps in the 12-hour period.
Mtbr's 2016 Winter Biking GearReviews and Roundups
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Thread: Red Bull Burner - NM