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Possibly no one will appreciate the design of PowerWheel, except for road cyclists who want to make their training harder. Once it is fitted, the wheel would then slow your bike down and therefore make it much harder to move the vehicle forward. It comes with seven difficulty levels, and the users can adjust the mystery-meat resistance mechanism inside the hub to set their needed level. However, the PowerWheel won’t work until your speed hits 10mph while below 45mph.

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