Fitness

3D printing bikes to make them go faster.

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Looks like I’ll need to lose about 20lbs to be a World Champ…

What’s the Ideal Weight for Cycling?

Let’s start by looking at the size and weight averages of world champion cyclists over the past 12 years to show the ideal weight range needed to compete on a very high level. The easiest way to do this is to average each rider’s weight in pounds per inch of height. The table below shows the average weight per inch of height for men and women road and mountain bike word champions^1,2.

Body weight in lbs. per inch of height – World champion cyclists 2001 – 2012
Mean (average), and standard deviation

As you can see, to compete on the world’s highest level you need to be light in weight – specifically, approximately 1.85-1.87 lbs per inch for women, and 2.15-2.19 lbs per inch for men. But body weight is not the only factor in elite performance – being as strong as possible while maintaining a healthy light weight is the key.

Maximizing Power-to-Weight Ratio

Power-to-weight ratio is the formula used to determine your strength compared to your weight, and it’s the great equalizer when comparing riders of different sizes. The higher your power-to-weight ratio the faster you will go. Power-to-weight ratio is calculated by dividing your body weight in kilograms (1 kg = 2.2 lbs) into average watts for a given range. For example, if you can produce 300 watts for your functional threshold power (FTP, about a 60 minute time trial effort), and you weight 74 kg (163 lbs), your power to weight ratio is 4.05 at your FTP range. This means you can generate 4.05 watts for every kilogram of body weight. A power to weight ratio of 4 to 4.5 is equivalent to a competitive Category 2 racer. A power to weight ratio of 5-6 would put you in the range of a Category 1 elite professional (according to Andy Coggan’s power profiling chart).

full article:

Why is weight so important in cycling? – USA Cycling.

Drivers Hating Cyclist on Twitter.

“A Ride of Death”, 1940s – Retronaut.

Morbid view on cycling..

‘Stacked’ by Ai Weiwei: 760 Stacked Bicycles at Galleria Continua | Colossal.

Japanese Bike Parking Tecnology – YouTube.

Luckily we don’t need this in most of amerikah… But man, this is rad good!

Strava | Segments | Leaders.

Goodbye Sam – and goodbye to all of your Cincinnati KOMs. I’ll be personally taking a handful of these!

KOM Destruction Mode!

Snapshot 10/8/12 2:22 AM.

More bikes sold than cars in Italy for first time since WW2 – Telegraph.

Well, your contact is wrong. This is the current situation in the bike industry. The vast majority of frames in made in China. After that, one of three things can happen with the frame:

1) It is shipped to market, bearing a “Made in China” label

2) It is shipped to Taiwan, where paying a 5% import tax allows you to relabel it as “Made in Taiwan”

3) It is shipped to for example Italy, which has very lax laws that allow you to do a little bit of labor (for example paint the frame) and relabel it “Made in Italy”.

So a lot of the frames you see labeled as Made in Taiwan, Italy or elsewhere are actually made in China. But companies fear that consumers don’t want a frame from China so you get duped into believing it was made elsewhere. There is a company that almost everybody thinks has the biggest Taiwan carbon frame factory, but in reality they don’t make a single frame in Taiwan. All they have in Taiwan is a relabel facility, all the frames are made in China.

_________________

Gerard Vroomen,

gerard@cervelo.com

www.twitter.com/@gerardvroomen

*I do not use the Private Message option of this forum*

via Weight Weenies • View topic – Who manufactures CERVELO’s frames?.