Replies to This Discussion

Permalink Reply by chixieonfixie on December 4, 2014 at 2:33am

That is a good explanation, thanks for posting.

Tandemonium said:

Good summary:

http://www.icebike.org/Articles/SlowerWinter.htm

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Permalink Reply by Erin Rensink on December 4, 2014 at 4:40am

I feel like it is just windier in the winter as well.  The cold I can handle - the wind is the more challenging. 

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Permalink Reply by Lisa Curcio on December 4, 2014 at 5:30am

These last few days with not too much wind have been so lovely.  And of course it is easy to manage the cold when wearing one of your winter cycling caps! :-)
 
Erin Rensink said:

I feel like it is just windier in the winter as well.  The cold I can handle - the wind is the more challenging. 

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Permalink Reply by curt(is) locke on December 5, 2014 at 3:34am

It would appear that these numeric values assigned are mere guess-timates lacking a certain degree of scientific rigor.

Mike Schwab said:

1. Cold Bearings and grease are stiffer and harder to turn: 1%
2. You need your energy to keep warm: 0%
3. Your tires are colder and therefore have greater rolling resistance +
4. You tend to ride softer tires for better control on ice: 3%
5. Your clothing is bulkier, making it more difficult to push your shape though the air: 5-10%
6. You are dressed in heavier clothing, making that much more weight to carry: 1%
7. You are dressed in heavier clothing which resists your movement making pedaling harder: 1%
8. People simply don't like generating the steam-bath like atmosphere inside of winter clothing, and therefore psychologically resist working as hard as in summer: 1%
9. Air Density is greater and impedes your progress through the air: 10-20%

Total: 15-30%

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Permalink Reply by Mike Schwab on December 5, 2014 at 5:41am

I just copied them from the website.

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Permalink Reply by Michael A on December 5, 2014 at 1:08pm

http://velonews.competitor.com/2013/03/bikes-and-tech/technical-faq...

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Permalink Reply by Joe Guzzardo on December 6, 2014 at 2:09am

Agreed, that's why it's important to include decimal points and standard deviations. Looks much more authoritative that way:

1. Cold Bearings and grease are stiffer and harder to turn: 1.658% ±0.2
2. You need your energy to keep warm: 0%
3. Your tires are colder and therefore have greater rolling resistance +
4. You tend to ride softer tires for better control on ice: 3.725% ±0.518
5. Your clothing is bulkier, making it more difficult to push your shape though the air: 5-10% ±3.874

curt(is) locke said:

It would appear that these numeric values assigned are mere guess-timates lacking a certain degree of scientific rigor.

Mike Schwab said:

1. Cold Bearings and grease are stiffer and harder to turn: 1%
2. You need your energy to keep warm: 0%
3. Your tires are colder and therefore have greater rolling resistance +
4. You tend to ride softer tires for better control on ice: 3%
5. Your clothing is bulkier, making it more difficult to push your shape though the air: 5-10%
6. You are dressed in heavier clothing, making that much more weight to carry: 1%
7. You are dressed in heavier clothing which resists your movement making pedaling harder: 1%
8. People simply don't like generating the steam-bath like atmosphere inside of winter clothing, and therefore psychologically resist working as hard as in summer: 1%
9. Air Density is greater and impedes your progress through the air: 10-20%

Total: 15-30%

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