Climb categories are calculated by: climb length (m) x climb average grade (%).
As you are creating a course, filter your map to show only the climb categories that are relevant to you. Use this tool to view only the climbs you are interested in riding, or the climbs you want to avoid.
Climbs within the same category will vary in length and grade. Within the same category, you will see both shorter and steeper climbs, as well as longer and flatter climbs.
NOTE: Climb categories do not consider altitude, grade variability or surface.
Easy (Uncategorized):
These are the flattest climbs. They will not take a significant effort compared to categorized climbs.
Category 4:
The easiest of the categorized climbs. At shorter distances, they are fairly flat and manageable (~3 km = 3-5% average grade). These climbs won’t get much longer than 5 km, and they will remain feeling relatively flat.
Category 3:
At shorter distances, these climbs are very difficult (~3 km = 10.5% average grade). They reach their max length at about 10 km. As they get closer to that length, they start to feel relatively flat (~3% grade). However, you will have to endure that grade for longer.
Category 2:
At shorter distances, these climbs will have very difficult to extreme grades (~3 km = 10.5-12% average grade). At a climb length of 10 km, you will have a 3-4% average grade. They reach their max length at ~16 km, with ~3% average grade.
Category 1:
Attempt these only with targeted training and experience. At shorter lengths, these climbs are extremely challenging grades to tackle (~3 km = 16% average grade). At longer lengths, you will still have grades difficult for almost all riders (~10 km = 5-6% average grade). It is possible to find these climbs as long as 20+ km.
Hors Catégorie (HC):
Translates to “Beyond Categorization”. These are the most difficult of all climbs. They are either the longest, the steepest or both. They are as tough to find as they are to complete. At shorter lengths, HC climbs will hit extreme grades (~5 km = 12.5% average grade). It will be difficult to find an HC climb shorter than 5 km, as the grade would get insurmountable. At longer distances (~10 km+), grades will be difficult and grueling. There’s no upper limit to the difficulty of HC climbs. They are found as long as 65.5 km+ with an average grade of ~6%.