Welcome to PJAMM Paved, your top resource for discovering the best and hardest paved bike climbs in the world. Since 2013, we have traveled extensively across the USA and the globe, documenting climbs through photographs, videos, maps, and detailed key data. Our website features comprehensive information on the hardest and best climbs in over 100 countries and 30 road cycling climb areas. With our advanced filtering options, you can search climbs by location, difficulty, length, elevation gained, steepest sections, and more. Trusted and respected worldwide, PJAMM Cycling is your go-to source for planning and conquering epic cycling adventures.
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TOP CLIMB AREAS
Pyrenees
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Saint-Jean-de-Maurienne
Owens Valley
Boulder, CO
Andermatt, Switzerland
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CYCLING BLOG
Check out the latest paved related post from the PJAMM Cycling Blog.
Apr 13, 2026
Why Mauna Kea is the hardest climb in the world (and it's not just because of the formula)
By: Sam Lyons, Director of Social Media & Merchandising | PJAMM Cycling
Combined, the PJAMM crew has climbed Mauna Kea more than a dozen times. It's hard. Like, stupidly hard. Hard enough that every time we finish it, we swear we'll never do it again (and yet, deep down, we all know we will).
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TOP 10 CLIMBS
Discover the top 10 paved cycling climbs in the world! (Click a slide for full climb details)
#1 Mauna Kea - Hawaii, USA
42.5 mi
DISTANCE
13,755 ft
ELEV. GAINED
6.1 %
AVG. GRADE
With the highest Fiets Index in the world, Mauna Kea is a colossal, nearly impossible ascent. While the climb itself is intimidating, cyclists must be mentally and physically prepared for dynamic weather conditions, altitude sickness, and varying terrain on one of the longest climbs in the world.
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