B BM1-Bike Chimp Mar 10, 2014 29 1 Aug 12, 2014 #1 The Butte 100 features an astounding 16,600 feet of climbing and is touted as the "most difficult mountain bike race in the country." Heavy Pedal Tour 2014 - The Butte 100
The Butte 100 features an astounding 16,600 feet of climbing and is touted as the "most difficult mountain bike race in the country." Heavy Pedal Tour 2014 - The Butte 100