Posts Tagged ‘Wattage Mountain Bike

29
Oct
12

Specificity, Specificity, Specificity.

Superfly 100

I recently began, after a roughly 12 year hiatus, riding mountain bikes again. Now, Dallas isn’t really terribly vertically challenged, so the term “Mountain Bike” is probably the wrong term, but for the sake of simplicity, let’s keep it on-topic with that title. One of  the reasons I moved OUT of the mountain bike realm and in to road racing, and this is really just one reason, was because of the fact that, despite my great climbing abilities and decent descending skills, when I moved to Texas, I SUCKED AT TEXAS MTB RACES!!! However, it wasn’t until this summer that I actually began to understand just why.

Lots of speed, wattage, and cadence variations.

Mountain bike racing is definitely requires different training than standard road racing, but I didn’t really understand just how distinct TEXAS mountain bike racing was, until I started going to local DORBA trails again, this time armed with a Quarq power meter. Now, while I knew that Texas trail riding and racing was unique, I had NO IDEA that the demands were until I got this data. Look at the chart above, and watch how stochastic the data remains as I sort of randomly zoom in.

The first image was a 2hr overview. This next one is about 57 minutes…

It’s still stochastic in watts, cadence, and speed…

And here it is, zoomed in to 30 minutes…..

It’s STILL pretty stochastic for the 3 metrics…

And as we zoom in further, you start to see where I may be going with this…..

Still stochastic, but you start to get an idea of the cadence range…

Notice how many short, medium-cadence 'bursts' there are...

regardless of terrain.

19×5-10sec intervals with roughly equal coasting or zero-load pedaling.

So, if you think about it, zoom back up and out, and look at the macro, 2 hour ride, and then scroll down until  you get here. I’ll go in to WKO+ (I’m writing this on my Mac, and will upload the relevant graphic later), to do a ‘Fast Find’, but I’ll bet that in that 2 hour ride, there are probably, oh, let’s take a guess…. what, 300 of these 5-to-15 second intervals, in zones 4, 5, 6, and even higher? WHAT DOES IT ALL MEAN??????

Believe me – it’s actually twistier than it looks.

Well, for one thing, it means that I have a LOT of Specific Training to do, if I’m going to show up for next year’s DORBA races, and even TMBRA races, prepared. I need bike handling practice, I need to dial in my suspension, but probably more importantly, I need to have the ability to do 300, 400, or maybe more, intense intervals, at 60-80 rpm. Try doing THAT on a CompuTrainer! Ugh!

I just wish I had data from my old days, racing in the 90’s in the Northwest. That was a COMPLETELY different beast, and it fed more in to my abilities as a solid Vo2-max and Threshold Racer, and NOT, as a punchy, crazy-accelration-to-the-next-hairpin-where-you-had-to-brake-only-to-punch-it-again-times-400-efforts type racer!!

Let the challenge begin – Hopefully I’ll be ready!!!




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