The present invention relates to a rim cushion assembly that can prevent damage to the inner liner that occurs when the rim of a heavy-duty pneumatic tire is mounted, and a heavy load that can achieve reinforcement of the bead portion and improvement of tire durability by the application of the rim cushion assembly. It relates to pneumatic tires. The rim cushion assembly according to the present invention has a lengthwise dimension longer than a conventional rim cushion by a set width of the overlap portion so that an overlap portion having a predetermined width capable of suppressing the occurrence of cracks at the end of the inner liner can be formed. The feature is that the rim cushion and the body wave finish are integrally molded.
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