The SAMEBIKE electric bicycle is fully compliant with the legal regulations for assisted bicycles in both the European Union and the United Kingdom: 1)Maximum Speed:The default speed setting upon purchase aligns with EU/UK regulations at 25KM/H. However, for those inclined, it's possible to unlock the speed limit to reach 35KM/H or higher (instructions to remove the limit can be obtained from customer service). 2)Maximum Power:The motor doesn't have explicit power markings, adhering to EU/UK regulations. The actual motor power is indicated by the "D" code, like "500W" as "500D" or "250W500D," encompassing both rated and peak power within legal limits. 3)Pure Electric Drive Mode:The bike comes with a detachable thumb throttle. Removing it complies with EU/UK regulations, which prohibit a pure electric mode. However, users can install the throttle according to preference for a pure electric mode (instructions for the detachable throttle are included or available via customer service). 4)Product COC Certification:All SAMEBIKE models have obtained CE and UKCA certifications from the EU's ECM institution, ensuring full compliance with legal standards.