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Onyx Summit from Highland

HC
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Elevation profile Onyx Summit from Highland

Statistics

Difficulty points 1080
Length 39.5 mi
Average gradient 3.6%
Steepest segment 7.3%
Total ascent 7579 ft

Short recap

Famous climb
#37 toughest climb of North America
#42 most elevation gain of World
#29 longest climb of World
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Onyx Summit from Highland is a climb in the region California. It is 39.5 mi long and bridges 7579 ft of vertical ascent with an average gradient of 3.6%, resulting in a difficulty score of 1080. The top of the ascent is located at 8451 ft above sea level. Climbfinder users shared 0 reviews of this climb and uploaded 0 photos.

Road names: Greenspot Road, Florida Street, Garnet Street, Mill Creek Road, United States Forest Service Firefighter Brent Michael Witham Memorial Highway & Detective Jeremiah MacKay Memorial Highway

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Climbing times

5 mph 07:57:10
7 mph 05:37:49
9 mph 04:23:16
12 mph 03:17:47

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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 Highland. 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 Highland 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 Highland is 39.5 mi long.

The average gradient of Onyx Summit from Highland is 3.6%.

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

The summit of Onyx Summit from Highland is at 8451 ft.

At a slow pace of 5 mph, it takes about 07:57:10 to climb Onyx Summit from Highland. At 7 mph the time is 05:37:49, and at 9 mph 04:23:16. For the fastest cyclists, 03:17:47 is an achievable time.

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

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