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Einzelnen Beitrag anzeigen
Alt 20.09.2013, 11:31   #184
tomerswayler
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Registriert seit: 29.09.2007
Beiträge: 884
In dem von drullse verlinkten PDF (http://www.falcobike.com/ttwhitepaper.pdf) findet man n bisschen was zu Aerodynamik, Steifigkeit und Komfort. Wie korrekt die Angaben sind, sei mal dahingestellt.



"a TT bike that is estimated save the rider 25 watts compared to the very few “super bikes”, and approximately 40 watts over a typical TT bike on the market today, and which translates into approximately 75 - 115 seconds saved in a 40km time trial. (4)"

(4): Estimates of watts saved and seconds saved are necessarily based on a set of assumptions and we have adopted assumptions that we believe are common in real world race situations for reasonably fit cyclists.



VI. Stiffness
"...carbon fiber engineers worked hard to improve stiffness of the frame in the following manner:

(i)
We adopted an multiple-internal mold technique in the manufacturing process, thereby creating reinforcement ribs within the wide and narrow top tube and down tube, thereby adding to the stiffness without sacrificing much weight (or the lack thereof);

(ii)
As TT bikes are typically not meant to be ridden out of the saddle very much, we determined that BB86 (instead of BB386) provided the appropriate level of spindle stiffness while leaving the BB area enough space to build to oversized chain stays;20 and

(iii)
As usual, we have performed impact and fatigue tests on the frame at standards that are 20%-200% more stringent than the already very tough EN standards.21


VII. Comfort
Time trialing is not meant to be comfortable. It is hard. However, as many of our users will likely be in the saddle for hours at a time, we wanted to make sure this bike is not unduly uncomfortable. The beam design provides a great way of adding comfort, as the beam serves as a suspension device to begin with. In addition, we further fined tuned the carbon layup of the frame to provide more shock absorption in the beam.
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