After a transition period, on August 23, 2025, the EU will fully enforce the new regulations for electric power-assisted bicycles (EPAC) EN 15194:2017+A1: 2023, which is the most comprehensive regulatory revision since 2017.
For manufacturers, this means a comprehensive adjustment of product design, production and certification processes; for consumers, it is necessary to understand this regulation before purchasing an electric bicycle in order to obtain a more reliable riding experience and more transparent purchasing standards.
Core technical parameters
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"Hard constraints" of the power system：250 W+25 km/h
Manufacturers must strictly follow the "hard constraints" of the power system, keeping the maximum continuous rated power within 250 W. When the speed reaches 25 km/h, the power output gradually drops to zero, and it cuts off immediately if the rider stops pedaling. This ensures EPAC remains an assisted bicycle, avoiding confusion with electric motorcycles. By fulfilling their responsibilities, manufacturers guarantee compliance and safety, allowing consumers to use products with confidence, enjoy safe riding, and protect their own interests.
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"Safety red line" of voltage and battery：DC system ≤48 V
Manufacturers should also strictly comply with the'safety red line' for voltage and batteries, with DC systems ≤48 V or equipped with compliant chargers, and comprehensively test batteries per EN 50604 -1 for mechanics, environment, etc., ensuring product safety and safeguarding consumers’ interests for worry - free use.
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Mechanical safety acts as the “invisible protection” in cycling.
The braking system should meet torque standards and cut off power when braking to avoid “confrontation” between power and brakes. The frame/fork shall pass vibration and impact tests to prevent breakage or deformation. Wheels/tires should have information marked to avoid high - speed blowouts. Smooth sharp edges, equip lighting and reflectors, install bells, ensuring all - round cycling safety.
Guidelines for consumers
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Confirm compliance of power parameters：When purchasing, check if the vehicle power is ≤250 W and whether the power can gradually cut off when the speed reaches 25 km/h, ensuring compliance with EU regulations and avoiding legal risks and safety hazards from non - compliant use.
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Verify electrical safety certification：Check if the battery has passed the EN 50604 -1 test and if the vehicle has a CE mark to ensure charging and usage safety, preventing dangers such as battery short - circuits and fires, and safeguarding your own rights.
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Check mechanical safety details：Pay attention to whether the power can be cut off synchronously when braking, if the frame has undergone vibration testing, if tire parameters are clear, and confirm the configuration of lighting, bells, etc., to protect riding safety.
Usually, e-bike manufacturers will mark this information on the product details page, packaging or instruction manual. You only need to pay attention when purchasing the product, and you will be able to buy a safe and reliable e-bike that complies with regulations.
Ado E-bike strictly abides by the industry regulations of electric bicycles, has passed SGS and SE certification, complies with EU safety regulations, and is trusted and purchased by consumers around the world.
Hope this article equips you with the knowledge to make informed e-bike choices and enjoy a safe, compliant riding experience!
