CYCLING PERFORMANCE TIPS
Last updated: 2/23/2017
Weight and Aerodynamics
I have often joked with friends that tossing that extra water bottle, or skipping
a big breakfast were, $ for $, the least expensive ounces you could find if you
wanted to lighten your bike.
This blog entry is a nice summary of other, frequently overlooked, ways to lighten your bike.
And definitely cheaper than a new carbon frame or wheelset.
Is going aero worth the cost (dollars and a more uncomfortable ride)?
This YouTube video
is a nice demonstration (and summary of the issues).
- Air drag - 80% you 20% bike (which is what aero will improve)
- Aero is a bit heavier, stiffer, and less comfortable
- 2 bikes Ð same positioning on the bike (1 aero vs 1 a high end racing bike)
-li>10 minute ride 200w and 300w
- compare AVERAGE speeds with comparable power in watts
BUT this was on a flat track. HOW ABOUT HILLS?
I used Analytic cycling
- 200 watts 19.2 mph vs 20.2 mph (aero)
- 300 watts 22.6 mph vs 24.2 mph (aero)
Bottom line? Aero definitely works for speed on the flats (and with a smooth road).
And even a significant slope (6%) does not eliminate the aero advantage.
- Regular versus Aero
- wt bike +rider 75 kg and then 76 kg (for aero)
- drag coefficient* 0.88 0.7
- power 300w
- 0 slope 10.01 m/s and 10.77m/s
- 2 % slope 8.29 m/s and 8.75 m/s
- -2% (downhill) 11.76 m/s and 12.83 m/s
- 4% slope 6.73 m/s and 6.95 m/s
- -4% slope 13.45 m/s and 14.81 m/s
- 6% slope 5.45 m/s and 5.53 m/s
- -6% slope 15.05 m/s and 16.68 m/s
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Cycling Performance Tips
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