Human Powered Vehicles: Pedal Power on Display

Examples of bicycle technology at the International Human Powered Vehicle Association speed championships.



Human Powered Vehicle
Upsets-even at 30 or 40 MPH-present only a minor nuisance because of the vehicles' light weight and tough Kevlar or composite fairings.
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Human Powered Speed
Human-powered vehicles at the International Human Powered Vehicle Association speed championships.
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Human Powered Vehicle 6
 The 1/4-mile dragstrip sprints and the nighttime velodrome pursuits offered a nice balance to the longer road events.
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Human Powered Vehicle Forward Bike
The drive mechanisms cover the spectrum from conventional chainwheels and derailleurs to those modified with outsized sprockets to linear-action designs.
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Human Powered Vehicle 5
The machines should be repairable and maneuverable.
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Human Powered Vehicle 7
With bicycle technology and appropriate technology, practicality as well as speed is important. 
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Human Powered Vehicle 11
The "flying start" speed trials at the site of the Indy 500 resulted in the highest velocities of the championships weekend: just at the legal speed limit!
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Human Powered Vehicle 8
 Two-, four-, and five-person vehicles all vied for victory in the multiple-rider class, which was dominated by university engineering students.
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Human Powered Vehicle 12
A human-powered vehicle. 
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Human Powered Vehicle 9
Road course entrants approached speeds of 40 MPH.
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 Human Powered Vehicle 14
The speed championships traditionally open two categories: single- and multiple-rider vehicles. 
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Human Powered Vehicle 13
A good deal of last-minute preparation is essential.
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Human Powered Vehicle 4
A single-rider vehicle.
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Human Powered Vehicle 10
A multiple-rider vehicle.
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 Human Powered Vehicle 15
Indianapolis' Eagle Creek Park presented contestants with challenging hills and curves in a beautiful setting.
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