DrWJODonnell

A recent interview of Magnus Backstedt at interbike led to a few revelations on a pro's wattage...

Referring to sprinting
and then later when asked about his longer term power...

I have searched the net and he is listed as 6'3" and between 90 and 94 kilos (198 ad 207 lbs). Just thought someone might be interested.

recneps

535 is about what I estimated leipheimer averaged for the TOC prologue.

seppomadness

Its quite a useless stupid answer by him. 2 seconds? What an idiot. His 5 second avg would drop quickly to about 1500 (end of race) and 1600 fresh....his 15-25 second avg would be far further down again (similar to what Zabel was refering too...around 1200-1300 watts tops).

I like Zabel - he speaks in real terms. Only a d$%khead would run around quoting airy fairy 1-2 second wattage to the press.

ElJamoquio

Doesn't matter. 535 is close to double my watts for twenty minutes. Allen/Coggan's chart is on crack.

Duke of Kent

I'd hang with him for about 12-13 minutes on a climb...

ElJamoquio

At least I weigh 25% less. So I might be able to hang for five.

biffstephens

WTF.....the only thing I can say is I bet I could kick his ass in a bar fight.....

roadgator

I agree. A power reading is probably not going to be accurate over just one or 2 seconds because the crank speed, w (P=T*W) can not be well established within such a small period, especially if there are accelerations when sprinting. Unless his meter has a sample rate >20Hz or so, those numbers mean nothing. does anyone know the sample rates of power meters?

Disregarding the speed component of the power, it does indicate he can produce some ridiculous torque (its measurement is not time dependent). But then again he weighs 95 kilos, and needs every bit of that power to push him toward the finish line.

Squint

200 Hz for the SRM and 60-70 Hz for the PT.

NomadVW 

I'm surprised that there's so much distaste. It's not like he's quoting "off the chart" numbers for his size. I mean, c'mon - he's 90+ kg. Sheer gravity of that weight is going to push the numbers up. Even if his 5 second power was 1900, @ 90kg we're still talking low domestic pro based on track sprinters. But if it's only 2 seconds, then his 5 second is probably down in the 1700 range at best, pretty far down the chart when we're talking pro riders in w/kg.

I'm more impressed with the 535 watts for his 2x20's. Yeowch. Interestingly it's just shy of the "magic number" of 6 w/kg if he's 90kg.

waterrockets 

I agree, those numbers are impressive and believable. Looking at a power chart, if the data is continuous, there's nothing wrong with pulling out a 2-second sample. The crank cadence will also be continuous, and reasonable, over 15s.

recneps

According to kreuzotter he would need 535 watts to keep up with me on a climb, I can do 375 watts for 20 minutes on my road bike while fresh up a climb. 8% grade for him to average 11.6 mph like I did he would need 540 watts.

I also weigh 133lbs @ 6'.

curveship

Those are the sample rates for torque. Rotational velocity is sampled once per revolution (reed switch).

Duke of Kent

Is that according to kreuzotter, or according to your PT/SRM?

UT_Dude

You're a stick. Or Rasmussen...

recneps

PT gave me the power average.

recneps

Nah, I'm not a skinny as Rasmussen.

Duke of Kent

You need to start doing mountainous stage races. ASAP.

You will blow the doors off of everyone in the 3s if you are putting out 6w/kg for 20min...

Compressed

If that is accurate (and true) than those are pro level numbers and you will be 2 then 1 in no time if you know how to race and race frequently.

waterrockets 

You sound like a poster-child for an eating disorder

133 lbs @ 6': "I'm not as skinny as..."

Duke of Kent

Or, just go for a ride with a local Pro or Cat1, show them what you're made of, and they can upgrade you to the 2s.

dutret

How is 2s meaningless? 2s power is the difference between getting on a wheel as it comes by and fighting to catch it.

Or are you saying that it's not an accurate measure? I don't see how you need a 40 samples of the crank to get a usable number. Every time it comes around you know how far it's moved in how long. If you have tourque at 200hz you can get average power for that rotation pretty easily. Taking 4 points above 1900 then seems pretty reasonable.

skinnyone

True Dat

Compressed

**** they'll be recruiting him for their team to be their climbing specialist!

recneps

I do well in mountains stage races, but that ride only gave me 7th in the uphill TT, Thad Dulin(jittery joes) beat me by over 3 minutes. IDK they guy who's powertap it was hasn't been having any trouble with it I know of but maybe the number was off, its only the second time i've ridden a powertap.

I read somewhere that Boonens 5sec power was ~1600 at the end of a race.