When selecting tricycles for B2B distribution, prioritize frame material durability, typically high-carbon steel for heavy-duty use or aluminum alloy for lightweight maneuverability. For electric models (e-trikes), verify the battery capacity (Ah) and motor power (W), ensuring they meet the torque requirements for the intended terrain. Pay close attention to the braking system, where front disc brakes and rear expansion brakes are preferred for safety. Additionally, check the load capacity, which should ideally be ≥150kg for passenger models and ≥300kg for cargo variants.