Zipp Part 2: The drum tests loads wheels with 142 pounds and spins them over bumps at 25 mph for at least 40 hours.
- By VeloNews.com
- Published May. 30, 2009
Zipp Part 2: The drum tests loads wheels with 142 pounds and spins them over bumps at 25 mph for at least 40 hours. | Photo: Zack Vestal
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Zipp Part 2: The drum tests loads wheels with 142 pounds and spins them over bumps at 25 mph for at least 40 hours. | Photo: Zack Vestal
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