Question: what is a category 5 climb?
Answer: Category 4 2km or so @ 6% 4km or so @ < 4% Category 3 2-3km @ 8% (or less on average, but with very steep pitches) 2-4km @ 6% 4-6km @ 4% Category 2 5-10km @ 5-7% 10+km @ 3-5% Category 1 5-10km @ >8% 10-15km @ 6% HC Often Category 1 climbs as the last climb of the day 15+km @ 8%+ (Alpe D'huez, etc.)