Kgs = Watts

nailsaslegs
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Kgs = Watts

Postby nailsaslegs » Mon Aug 26, 2013 7:00 pm

Not sure which forum to stick this in, Health, Training, whatever so here it is. Somewhere I read an article about Kgs=Watts. Such as 5kgs = 10 watts or something like that. It was a good article and showed how losing Kgs would increase your power to weight ratio etc. Wondering if anyone has a link to that same article or similar?

Cheers

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bigfriendlyvegan
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Re: Kgs = Watts

Postby bigfriendlyvegan » Mon Aug 26, 2013 7:09 pm

Yes, I can confirm. I am fat and powerful.

Actually, just fat.

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clackers
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Re: Kgs = Watts

Postby clackers » Mon Aug 26, 2013 7:18 pm


human909
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Re: Kgs = Watts

Postby human909 » Mon Aug 26, 2013 7:22 pm

http://bikecalculator.com/" onclick="window.open(this.href);return false;

At 30kph, 0% grade and 70kg then adding 10kg makes 5W difference.

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toolonglegs
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Re: Kgs = Watts

Postby toolonglegs » Mon Aug 26, 2013 7:27 pm

It is simple... get as skinny as you can while making the most power you possibly can.
It what ranges you make the most watts per kilo will determine roughly what type of rider you will be.
Although that little Russian who thought he could force me off my line yesterday quickly realized that 65kgs against 90kgs is bad odds :P

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clackers
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Re: Kgs = Watts

Postby clackers » Mon Aug 26, 2013 7:48 pm

As H909 points out, weight pretty much doesn't matter on the flat (that's all about power vs aero shape), so Fabian Cancellara can be world time trial champion but can never win a Grand Tour.

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toolonglegs
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Re: Kgs = Watts

Postby toolonglegs » Mon Aug 26, 2013 7:57 pm

clackers wrote:As H909 points out, weight pretty much doesn't matter on the flat (that's all about power vs aero shape), so Fabian Cancellara can be world time trial champion but can never win a Grand Tour.
People would have said the same about Wiggins when he was winning golds on the track.

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Re: Kgs = Watts

Postby Bah77 » Mon Aug 26, 2013 8:41 pm

https://www.youtube.com/watch?v=5DRQwKREgvI" onclick="window.open(this.href);return false;

I saw this a while ago, lighter bike vs lighter body, shows differences between power used for extra weight.

joomz
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Re: Kgs = Watts

Postby joomz » Mon Aug 26, 2013 8:41 pm

And now Wiggins is tipping the scales in the other direction again, trying to put on 8kg before the world tt championships
http://m.cyclingnews.com/news/wiggins-b ... -trial-bid" onclick="window.open(this.href);return false;
Interesting game

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clackers
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Re: Kgs = Watts

Postby clackers » Mon Aug 26, 2013 8:47 pm

toolonglegs wrote: People would have said the same about Wiggins when he was winning golds on the track.
Yep.

Ferrari used to bully his charges into losing weight.

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gorilla monsoon
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Re: Kgs = Watts

Postby gorilla monsoon » Tue Aug 27, 2013 12:07 pm

clackers wrote:
toolonglegs wrote: People would have said the same about Wiggins when he was winning golds on the track.
Yep.

Ferrari used to bully his charges into losing weight.
But Colin Chapman made his cars as light as possible. Go figure.
Not my circus, not my monkeys

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Xplora
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Re: Kgs = Watts

Postby Xplora » Tue Aug 27, 2013 12:30 pm

I don't think it's worth bothering about working out your lost watts due to weight; the answer is plainly "lose as much as you can, always" while being able to push the pedals hard. You don't eat enough, you can't push pedals. Simple. Even a flat race is often subject to some minor inclines, and your weight works against you much harder than it works for you. Many guys pick a higher gear to spin down the hill. You don't quite have the same effortless luxury trying to go back up.

Most people asking the question usually have a lot of weight to lose. I'm 71 at 187cm?? Something like that. I have some weight to lose but I don't think it's wise to do it. Better to put on muscle bulk to increase the top power, than try to improve watts/kg because I have room to move with muscular strength. Thing is, if you jump at the right time, no one can keep up anyway. Play doggo at all times ;)

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clackers
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Re: Kgs = Watts

Postby clackers » Tue Aug 27, 2013 12:50 pm

gorilla monsoon wrote:
clackers wrote:
toolonglegs wrote: People would have said the same about Wiggins when he was winning golds on the track.
Yep.

Ferrari used to bully his charges into losing weight.
But Colin Chapman made his cars as light as possible. Go figure.
By 'charges' I meant Valiant Chargers, of course, GM.

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jules21
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Re: Kgs = Watts

Postby jules21 » Tue Aug 27, 2013 1:47 pm

losing weight helps on hilly courses. on flat courses, you aren't doing much work to push the weight and you will benefit from the additional power which tends to be available from greater muscle mass. if the increased weight is a beer gut, you're probably not fit enough to ride quickly anyway.

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Ross
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Re: Kgs = Watts

Postby Ross » Tue Aug 27, 2013 3:15 pm

Some interesting reading about Jens Voigt's wattage output during his breakaway in the recent USA Pro Challenge. According to Wikipedia he weighs 76kg

http://velonews.competitor.com/2013/08/ ... ack_300075" onclick="window.open(this.href);return false;

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toolonglegs
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Re: Kgs = Watts

Postby toolonglegs » Tue Aug 27, 2013 4:22 pm

Ross wrote:Some interesting reading about Jens Voigt's wattage output during his breakaway in the recent USA Pro Challenge. According to Wikipedia he weighs 76kg

http://velonews.competitor.com/2013/08/ ... ack_300075" onclick="window.open(this.href);return false;
The numbers aren't that impressive until you take in to account the altitude they were racing at. A mate of mine that trains often in Utah said he loses 10-20% on about the 2nd day he arrives there from sea level.

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