Road Cycling - TdF Catagory Climbs - What's the formula?

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WoodyUpstate
05-22-02, 06:53 AM
Does anyone know the formula for determining the catagory of a TdF climb?
The cats for climbs are:
4th Category - the lowest category, climbs of 200-500 feet(70-150m).
3rd Category - climbs of 500-1600 feet(150-500m).
2nd Category - climbs of 1600-2700 ft.(500-800m)
1st Category - climbs of 2700-5000ft(800-1500m)
Hors Category - the hardest, climbs of 5000ft+(1500m+)
Marty
WoodyUpstate
05-22-02, 11:59 AM
It's really that simple? I expected grade and length of climb would factor in.
Does the Giro use the same formula (no hors catagorie, of course).
There is a more detailed discussion/article
here (http://draco.acs.uci.edu/rbfaq/FAQ/5.3.html)
It is a little more involved than just height
however from what I'm reading its rather
haphazzard
Marty
WoodyUpstate
05-24-02, 09:23 AM
Amazing reading! And why am I not surprised that the French are so inconsistent.
I plotted last year's rated climbs on a graph as to length and grade in order get an idea how the hills around home compare. It was actually pretty successful. e-mail me if you'd like a copy in Excel format. sherwood@telenet.net
Most of the hills I ride fall in the Cat 3 and 4 range. The climbs around me that I would qualify Cat 2s are 6% to 12% with a length of 1.5 to 5 miles. The shorter, the steeper.
All of this interests me, because there is virtually no flat riding near me. I live at the top of a 300', 8% climb no matter which way I ride (not Alpe d'Huez, I agree).
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