4013.90.50 - Other

This HTS subheading, 4013.90.50, encompasses inner tubes of rubber that are not specifically designed for tires covered by the sibling category 4013.90.10. This includes a broad range of inner tubes intended for various vehicles and equipment not explicitly defined in other subheadings. The primary classification criterion here is the absence of a specific design for certain tire types, such as those for agricultural or forestry vehicles, or specific types of passenger vehicle, truck, or motorcycle tires.

Distinguishing this "Other" category from its sibling, 4013.90.10, is crucial. The sibling subheading is narrowly focused on inner tubes designed for a defined set of tire HTS codes, implying a specific dimensional or structural compatibility. Therefore, if an inner tube is not expressly manufactured to fit tires falling under those particular subheadings, it will generally be classified under 4013.90.50.

Within this "Other" category, further distinctions are made to provide greater specificity for classification. Subheadings 4013.90.50.10 and 4013.90.50.50 differentiate based on the intended application of the inner tube. This allows for precise classification of motorcycle (including moped) inner tubes separately from all other remaining types of inner tubes not already specified. This hierarchical breakdown ensures accurate customs declarations for a wide array of rubber inner tubes.