E4-B Size PR Type Overall Diameter mm Section width mm Stndard Rim Max Load（KG) Pressure 50 KM/H 10KM/H 65/50 km/h 10km/h 18.00-25 36 TL 1615 495 13.00/2.5 9250 16000 625 850 18.00-33 36 TL 1820 495 13.00/2.5 10600 18500 625 850