Lifeng 2.0×1.3m heavy‑duty electric cargo tricycle. Built‑in integrated full‑floating ball‑muffler‑box 23‑gear rear axle, reinforced 1800W permanent‑magnet synchronous motor and 30‑tube enhanced controller with anti‑rollback function. Φ43 lengthened aluminum‑cylinder hydraulic front fork and double‑row 8‑leaf‑spring rear suspension, heavy‑duty braking system and automotive‑grade steel rims. Multiple battery options for heavy‑payload cargo transportation. OEM & ODM customization supported.