In the Netherlands and in many European countries, e-bikes are limited to a maximum output of 250W. This is one of the reasons e-bikes with mid-drive motors are so popular in Europe—a mid-drive motor can provide more assistance than a hub motor can for a given wattage. Why mandate such a low power output? Dutch officials see it as a public safety issue. While pedelecs that go 28 mph (45kph) are available, most e-bikes are restricted to 15.5 mph (25kph). According to the Dutch government, as e-bike use has grown, so have e-bike-rider fatalities, in an equal proportion.
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The Dutch government has purchased 247 portable dynamometers that can be positioned in locations with high e-bike traffic and the police can stop riders and test their e-bike’s output. E-bikes that exceed that 250W nominal rating will earn their owners a ticket €290 ($312 USD). A second infraction will result in the same fine, but a third can result in confiscation of the e-bike.
According to the police, fat tire e-bikes have proven to be the most frequent violators of the law regarding power output. These e-bikes have become popular with young people in the Netherlands.
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