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Onyx Summit from Mentone

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Elevation profile Onyx Summit from Mentone

Statistics

Difficulty points 1040
Length 55.7 km
Average gradient 3.9%
Steepest 100 metres 7.3%
Total ascent 2164 m

Short recap

Famous climb
#43 toughest climb of North America
#58 most elevation gain of World
#43 longest climb of World
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Onyx Summit from Mentone is a climb in the region California. It is 55.7 km long and bridges 2164 m of vertical ascent with an average gradient of 3.9%, resulting in a difficulty score of 1040. The top of the ascent is located at 2576 m above sea level. Climbfinder users shared 0 reviews of this climb and uploaded 0 photos.

Road names: Mentone Boulevard, Mill Creek Road, United States Forest Service Firefighter Brent Michael Witham Memorial Highway & Detective Jeremiah MacKay Memorial Highway

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Climbing times

7 km/h 07:57:49
11 km/h 05:04:04
15 km/h 03:42:59
19 km/h 02:56:02

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Frequently Asked Questions

Onyx Summit can be cycled from 3 sides. Onyx Summit from Big Bear City is the most popular side, but the summit can also be reached via Onyx Summit from Mentone & Onyx Summit from Highland.

You don't need special gearing for Onyx Summit from Mentone. The slope isn't long or steep enough to require much shifting down. You can conquer this climb on power alone. However, a compact gearing system with a smallest front chainring of 34 and largest rear sprocket of 28 or 30 is always nice if you enjoy cycling uphill. This helps maintain a smooth cadence.

Onyx Summit from Mentone belongs to the Hors Catégorie, the top category. These are legendary and very tough climbs. A solid cycling condition, experience, and a good climbing gear ratio are essential to maintain a smooth cadence and complete the climb comfortably.

Onyx Summit from Mentone is 55.7 km long.

The average gradient of Onyx Summit from Mentone is 3.9%.

Onyx Summit from Mentone has a steepest segment with an average gradient of 7.3%.

The summit of Onyx Summit from Mentone is at 2576 m.

At a slow pace of 7 km/h, it takes about 07:57:49 to climb Onyx Summit from Mentone. At 11 km/h the time is 05:04:04, and at 15 km/h 03:42:59. For the fastest cyclists, 02:56:02 is an achievable time.

Onyx Summit from Mentone is located in the region California in United States.

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