Wheel rim with composite rim flanges

A wheel rim with composite rim flanges, wherein rim flanges of the wheel rim with the composite rim flanges are composed of at least two parts:

• one part is a flexible rim flange located at an outermost circumference of the rim flanges, and the other part is a half-height rim flange located at an inner side of the flexible rim flange;
• the flexible rim flange is composed of at least one material, and a hardness of the flexible rim flange is less than a hardness of the half-high rim flange;
• the half-height rim flange and a rim base are integrally formed, and in a radial direction, a minimum distance from a circle with a maximum diameter of the half-height rim flange to a circle with a calibration diameter D of the rim base is less than or equal to (rim flange height G-2.5) mm, and the calibration diameter D of the rim base and the rim flange height G refer to definitions and numerical standards in GB/T 3487;
• and
• a pneumatic tire is mounted on a bead seat of a rim base with a half-height rim flange, wherein the rim base integrally formed with the half-height rim flange is called the rim base with the half-height rim flange.