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Power Data Estimates for the climbing stages

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16 Mar 2017 09:48

http://www.chronoswatts.com/news/113/

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Contador, déjà brillant deuxième derrière Porte au sommet du col de la Couillole (estimation de puissance à 6,2 w/kg et 425 watts étalon), a montré de grandes capacités de récupération le lendemain. Il ose une attaque à 50 km de l'arrivée dans la montée de Peille. J'ai estimé sa puissance moyenne à 6,85 w/kg et 467 watts étalon (+/- 4%) pour une durée de 15min48s.


Full retard season :eek:
Alberto we love you
on the road
you don't need to say this stuff
we saw you on the road
you blessed us with 9 great shows
let's not argue the toss about the official count
you are much bigger than that
~TourOfSardinia
User avatar LaFlorecita
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16 Mar 2017 09:53

I will be impressed when he actually manages that on a MTF for once.
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User avatar Valv.Piti
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Re:

16 Mar 2017 20:27

LaFlorecita wrote:http://www.chronoswatts.com/news/113/

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These two tables demonstrate exactly the point I'm making.

Alex Simmons/RST wrote:
Netserk wrote:
Alex Simmons/RST wrote:
Netserk wrote:I know it's higher for lighter riders, but when it's used as a measuring stick, I think it makes better sense to use a standardized weight (like DrF).

That makes no sense if you are seeking to compare physiological performance with the same W/kg measuring stick. If not, then one stick has different increments than other.

When wanting to compare different riders on different climbs, making their performances more comparable is important, at least it is for me.

Even if it requires a lower W/kg, I think it's more impressive for an 80kg rider to climb Alpe d'Huez in 40' than it is for a 60kg rider.

I get why some prefer an as precise actual W/kg as possible, but I just want to know who is the better climber/who can climb the fastest.

The better climber is the one who climbs fastest. You need no more information than that.

If you convert each rider's ascent rate into W/kg for a "normalised" 70kg rider with a fixed set of assumptions then all that happens is the faster rider has a higher "normalised" W/kg value, which tells you precisely nothing more than simply knowing the ascent rate. The ranking order for ascent rate will be exactly the same as for W/kg.
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16 Mar 2017 20:33

And it also allows to make better comparison of the two climbs than without it. Of course context is needed, but knowing the different numbers for Porte and Quintana is valuable.
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Re:

17 Mar 2017 01:08

Netserk wrote:And it also allows to make better comparison of the two climbs than without it. Of course context is needed, but knowing the different numbers for Porte and Quintana is valuable.

All that matters is what they do in the same race at the same time.

This sort of comparison is a best pub chat fodder and certainly not "valuable".
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17 Mar 2017 09:39

The forum is not unlike a virtual pub in a sense. I say this without a pejorative implication.

Despite the possible and impossible problems related to w/kg calculations, comparisons between climbs and riders, etc, I think they do have value and contribute positively. It is reasonable to be doubtful of performances (tirreno and PN) such as the ones that triggered the latest discussion above. The calculations tend to suggest so much, too.
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18 Mar 2017 20:28

Those numbers all seen very high. Basically higher than anything from last year, except just maybe for Quintana at Lagos de Covadonga?
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Re: Power Data Estimates for the climbing stages

18 Mar 2017 22:51

So it looks like Contador hasn't slowed down (from post-ban, not post-2009). Quintana and Porte not too surprising. Has Henao put out those kind of numbers in the past? Martin?
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