So here’s a run down of some climbs.
Forward KOM: 2 - 3 minutes ( Vo2 max and anaerobic efforts)
Reverse KOM: 4-6 minutes (Vo2 max)
Volcano climb: 7-10 minutes (Vo2, threshold, sweet spot)
Epic KOM: 25 - 40 minutes (Sweet spot, tempo threshold)
Reverse Epic KOM: 16 - 25 minutes (sweet spot threshold)
Alp du Zwift: 45 - 60 minutes (tempo,sweet spot)
Box/Fox hill: 7-11 minutes (vo2, sweet spot, threshold)
Leith hill: 10 - 15 minutes (threshold, sweet spot)
Keith hill: 10 - 15 minutes (threshold, sweet spot)
Forward KOM: 3 - 6 minutes
Reverse KOM: 4 - 7 minutes
KOM forward and reverse: 20-28 minutes (tempo, threshold, sweet spot)
Petite KOM: 5-8 minutes (Vo2 max)
VenTop: 75 - 100 minutes ( tempo, sweet spot) Yes that long!!
Libby Hilly: 1-2.5 minutes (anaerobic)
42nd hill: 30 seconds to 1.5 minutes (anaerobic)
Governors hill: 2 - 3 minutes (anaerobic, Vo2 max)
These are just some options I look at when I want to do efforts. I will also look at different course laps so it’s not allows climbing efforts.
Again for sweet spot weekend rides I’ll choose a course with multiple climbs and just sweet spot the climbs and use the rest of the time as zone 2. A few courses I like are Watopia 3 sisters, Watopia pretzel, London Surely hills
Check out Zwift Insider for more details on climbs and routes!