When evaluating tricycle bikes, prioritize the frame material, typically high-carbon steel for durability or aluminum alloy for lightweight maneuverability. For electric variants (e-trikes), verify the motor power (typically 250W-750W) and lithium battery capacity (Ah), ensuring they use reputable cells like Samsung or LG. Pay close attention to the braking system; a combination of front V-brakes and rear expansion or disc brakes is essential for safety, especially when the rear cargo basket is fully loaded. Additionally, ensure the load capacity meets your requirements, usually ranging from 150kg to 200kg for adult models.