N. Calif. weight weenies

Questions about bike hire abroad and everything light bike related. No off-topic chat please

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HammerTime2
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by HammerTime2

What is the total elevation gain? https://www.sportsbaseonline.com/Item.aspx?item_id=2041 only mentions variation in gradient from 7 to 10% on a 3.5 mile long course, and it is not clear if there are some portions with lesser gradient. If indeed it is all 7%+, I find the times hard to believe.

by Weenie


tmanley
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by tmanley

Elevation gain of 1,120 feet over the course of 3.7 miles. Haven't crunched the numbers to find the specific grade...

tmanley
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by tmanley

tmanley wrote:Elevation gain of 1,120 feet over the course of 3.7 miles. Haven't crunched the numbers to find the specific grade...


According to this site, http://www.csgnetwork.com/inclinedeclinegradecalc.html, the total grade works out to be 5.733%.

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djconnel
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by djconnel

tmanley wrote:
tmanley wrote:Elevation gain of 1,120 feet over the course of 3.7 miles. Haven't crunched the numbers to find the specific grade...


According to this site, http://www.csgnetwork.com/inclinedeclinegradecalc.html, the total grade works out to be 5.733%.


Wind was a big factor. According to i-Bike data which was shared with me from someone not much slower, an estimate of 0.4 W wind resistance power for the first portion, followed by 40W on the second portion. The issue with this is the headwinds on the upper part partially neutralized it: placings were more largely influenced by the lower portion. It made sense to start hard then hang on, which is not what I did.

My powertap data (57kg, 6th/17 in E3)... the transition from the lower, tailwind portion to the upper, head/cross portion is at minutes 9-10:
Image

Dan

donald
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by donald

Dan I'm sorry I missed you. I went around the parking lot a couple of times, and as was said, I was very near registration after the race. I was looking forward to meeting as many people as possible. I'm sure we will meet someday. I am also planning to be at the prolog of the tour of Calif. although there may be lots of people around, I will have the Ruegamer with me and hopefully if you are there we will meet or perhaps I will come to one of the low key hillclimbs.

Chasen1211
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by Chasen1211

Here are some pics of the event. For those who missed Don's 8.48lb beauty, I have a couple shots...

http://picasaweb.google.com/chasen1211/SanBrunoHC2008

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djconnel
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by djconnel

Chasen1211 wrote:Here are some pics of the event. For those who missed Don's 8.48lb beauty, I have a couple shots...

http://picasaweb.google.com/chasen1211/SanBrunoHC2008


Nice! I recognize that frame from the Handbuilt Bike Show this year. Nice work!

You got a good shot of Todd at the park entrance, approximately half-way up:
http://picasaweb.google.com/chasen1211/ ... 7627918594

Dan

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