Liwei 1.7/1.8 heavy‑duty electric cargo tricycle available in two dimension options. Equipped with integrated full‑floating ball‑muffler‑box 23‑gear rear axle, reinforced 1200W/1500W permanent‑magnet synchronous motor and 24‑tube enhanced controller with anti‑rollback capability. Φ43 lengthened aluminum‑cylinder hydraulic thick‑shaft‑hole front fork paired with double‑row 8‑leaf‑spring rear suspension, heavy‑duty braking system and automotive‑grade steel rims. Multiple battery selections for heavy‑load cargo transport. OEM & ODM customization supported.