Most folding e-bikes use hub motors, which are smaller and lighter than mid-mount motors generally found on non-folding electric bikes. Hub motors also save space in the body, allowing the bikes to fold up smaller. However, you shouldn’t essentially be put off buying a bike without a UL certification. https://andretisyd.bleepblogs.com/33093840/ola-electric-scooter-manufacturing-plant-in-bangalore-options