Abitrary said:
How do they measure hill ratios, though? It it's constantly 1:3, than that wouldn't pose a problem to most cyclists of any ability, as you would just steam straight up it.
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Steam straight up a 1 in 3? I'd like to see most people try!
UK gradients are given as the maximum gradient on the road (unlike alpine ones which I believe are averages over the road's full length).
This would appear to be the case for Rosedale Chimney which, looking at the get a map site, appears to climb to 300 m from about 150m (the Abbey is at about 130m) in the space of about a kilometre.
The steepest section looks to be in the middle of the hillside when the road kicks up from a elevation of 200m to 300m in a 500m stretch of road.
I make that 100/500 = 20% or 1 in 4.
The road is shown as having several distinct steep sections with only one short bit showing as a double chevron (i.e. 1 in 4 or greater).
The road certainly doesn’t average 1 in 3 over its full length. I very much doubt that any road (unless incredibly short) would do that.
So Rosedale Chimney peaks at 1 in 3, which is very steep indeed.
For comparison purpose, the (infamous) Hardnott Pass roses from 100m ASL to 393m ASL in a distance of about 2km but is also rated as 1 in 3.