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Old 06-04-19, 11:32 AM
  #20  
Cyclist0108
Occam's Rotor
 
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Originally Posted by PepeM
Hello, fellow BFers.

Lately, I have been riding my steel pedalbike a lot. It is a nice ride. Steel frame of unknown provenance, Dura Ace 10-speed groupset with downtube shifters, Ambrosio Crono wheels with Vittoria Corsa tubulars (23mm.) Solid ride all around.

Today, I took out my crabon bike out for a spin, after a year laying dormant. Focus Cayo, Force groupset, Psimet crabon tubulars. I followed the same route I rode on my trusty steelstead last week and lo and behold, I went over 2 mph faster on the crabon bike!

For the nonbelievers, I shall present evidence.

Exhibit 1, ride on the steel bike:



Note the average speed (shall not be confused with cruising speed.)

Exhibit 2, same ride on the crabon bike:



That's like a 15% gain in speed!

So, is crabon faster? Discuss.
Two routes of different lengths, one of which required significantly (1.6-fold) more power for a marginal (1.14-fold) increase in average speed? Sounds like the carbon bike is far less efficient, even though expectation bias leads you to pedal harder.

Last edited by Cyclist0108; 06-04-19 at 11:35 AM.
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