Motorcycles Chinese Motorcycle For sale: SYM motorcycle (Mahdi) 150cc engine. The motorcycle is generally clean, and the engine and gearbox are in excellent condition and guaranteed. Specifications: Engine: 150cc. Mileage: Only 7,000 km. Technical condition: Engines (engine and gearbox) are in excellent condition. Notes: The motorcycle needs a few minor things, and I won't shortchange the serious buyer.