Under the HTS, the classification of two-wheeled motorized vehicles generally turns on engine displacement (for combustion engines) or motor power output (for electric motors), as well as maximum speed capability. Motorcycles, mopeds, and motorized bicycles occupy different HTS headings with different duty rates. Because the thresholds are specific and the product landscape is evolving rapidly — especially for e-bikes — importers should obtain a CBP binding ruling for new product configurations.

The importer should review the scope language of any active antidumping or countervailing duty orders maintained by the US Department of Commerce for the relevant HTS subheadings and country of origin. Scope determinations can be requested from Commerce if the product's coverage is unclear. Given the long history of bicycle AD orders and the complexity of parts scope, consulting a trade attorney or licensed customs broker before entry is strongly advisable.