What is everyone's definition of steep/supersteep here? I live in a very hilly area in Sydney. Most my rides have >1000m elevation per 100km. I have many climbs of 5-10% around me. I would call anything above 5% steep. I think I could stay with a DF version of myself up to 2-3%. Above that I would lose. On a 10 minute 5% climb I suspect I would lose over a minute.
On rolling hills with <1 minute hills, that all changes. I have a few rolling hill loops I do, and I am much quicker on the V20.... but it is a tough interval workout on both! On the V20 I coast down the hills (no point pedalling above about 50kph) where on the DF, I still power the down hills (at lower power) and still go slower down the hills. On the sections of <1%, I am going about 5kph faster on the V20 compared to DF.
On rolling hills with <1 minute hills, that all changes. I have a few rolling hill loops I do, and I am much quicker on the V20.... but it is a tough interval workout on both! On the V20 I coast down the hills (no point pedalling above about 50kph) where on the DF, I still power the down hills (at lower power) and still go slower down the hills. On the sections of <1%, I am going about 5kph faster on the V20 compared to DF.