Starting at sea level and climbing to nearly 14,000’ in 42 miles, this volcano is the ultimate test of cycling strength and endurance. While not as famous as the great European bike climbs such as Alpe d’Huez, Tourmalet, Ventoux or Stelvio, as we know from experience, it is legendary amongst cycling extremists we have been contacted countless times by athletes seeking the hardest bicycle climb on the planet. This is the greatest cycling challenge in the world. TOP RANKED CLIMB IN THE UNITED STATES AND WORLD Washington) and Colorado (Pikes Peak #4) round out the Top 10. California is the second toughest cycle climbing state with three Top 10’s (#6 Onion Valley, #7 Horseshoe Meadow, and #10 White Mountain). Hawaii hails as by far THE “Top 10 State” with a whopping five out of ten most difficult bike climbs in the US (#1 Mauna Kea, #2 Haleakala, #5 Kaloko Drive, #8 Mauna Loa, and #9 Waipoli Road). Mauna Kea (#1) as seen from Mauna Loa (#8) We have also documented all of the Top 100 US Bike Climbs. We have personally ridden the Top 10 US Hardest Bike Climbs, some several times each.

W e have mapped the most difficult bike climbs in the world and personally documented most of them. Mauna Kea, HI Pikes Peak, CO Mauna Loa, HI Haleakala, HI Mt.

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