{"id":50967,"date":"2025-11-18T22:08:14","date_gmt":"2025-11-18T21:08:14","guid":{"rendered":"https:\/\/syklo.fr\/why-does-your-electric-bike-need-more-than-750w\/"},"modified":"2025-11-19T09:11:18","modified_gmt":"2025-11-19T08:11:18","slug":"why-does-your-electric-bike-need-more-than-750w","status":"publish","type":"post","link":"https:\/\/syklo.fr\/en\/why-does-your-electric-bike-need-more-than-750w\/","title":{"rendered":"What power for your electric bike? Calculator and EN15194 standard"},"content":{"rendered":"
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EN 15194: a framework for innovation<\/h2>\n

European regulation EN 15194 defines exactly what an electrically-assisted bicycle is: the maximum continuous power rating must not exceed 0.25 kW<\/strong>, and the power supply stops when the bicycle reaches 25 km\/h<\/strong>. This standard guarantees legal use on public roads. <\/p>\n

Contrary to popular belief, these regulations do not prohibit power peaks<\/strong> in excess of 250W. A motor is perfectly capable of withstanding a rise in temperature and absorbing power up to 2.5 or even 3 times its rated power<\/g>. It’s this technical distinction that enables some motors to deliver peak power ratings of 1000W<\/strong>, while complying fully with the law. <\/p>\n

Concrete use cases that justify power<\/h2>\n

Sarah, home care nurse in a hilly area<\/h3>\n

Sarah carries 15 kg of medical equipment in her panniers every day and has to climb the hills in her community. With a limited-power motor, her bike struggles and wears out prematurely. A power reserve enables her to maintain a stable speed even when climbing, without putting excessive strain on the motor. <\/p>\n

Michel, disabled user<\/h3>\n

For Michel, who has regained his freedom of movement thanks to an electric bike, the 15% climbs near his home are only possible with a sufficient reserve of power. European legislation recognizes these specific needs, and the LEVA-EU association regularly points out that power limits exclude certain categories of users. <\/p>\n

Daily use in rural areas<\/h3>\n

In the foothills of the Vercors, a short 15% climb with a loaded cargo bike represents a real technical challenge. Without sufficient torque, it’s a guaranteed walking aid and the risk of pushing 80 kg in sweat. This real-life situation illustrates why a power reserve is not a luxury but a practical necessity<\/strong>. <\/p>\n

Each concrete situation can be verified mathematically. A power calculator<\/strong> makes it possible to precisely estimate requirements for different usage scenarios. Below you can estimate the power required for your journey: <\/p>\n

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