The Tahoe Sierra 100 is not the hardest MTB 100 in the country, its by far the hardest 90 miler in the country with only 20,500 ft of climbing and 24,006 ft of decend.
there are only 100 spots left .Jan 1st reg opened.
www.globalbiorhyhtmevents.com for more info:
Mtbr's 2016 Winter Biking GearReviews and Roundups
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Thread: Tahoe Sierra 100