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An improved rotary drive gear system for a bicycle.

[Category : - Biking]
[Viewed 685 times]

The world's simplest and speedy,having speed ratio at least 4.8 gear system for a bicycle.The production cost would be same as an existing bicycle but the speed is at least two times faster.

Financial information

Get ready to be a Multinational Billionaire with my patent. Bicycle is the most effective invention in the era of transport and now it will be more effective if you will star its Global and Worldwide Monopoly business. Contact me soon for more information.

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