SHANGHAI (BRAIN) — President Donald Trump on Thursday said the U.S. will impose a 10% tariff on Chinese goods worth $300 billion in annual imports.

The list of goods — the so-called "List 4" — includes bicycle products not previously subject to new Trump tariffs, including bike helmets and lights. The tariff will take effect Sept. 1. Besides the bike items, it hits a range of consumer goods including toys and electronics. On the news stock prices fell Thursday afternoon for retailers, toy makers, and electronics brands, including Apple.

Helmets and lights were excluded from List 3 on safety grounds. Some other bike products were not included in List 3 because they are in the same category as other consumer goods, such as apparel and shoes, which are both included in List 4.

Bike parts and accessories that are imported under Harmonized Tariff System code 8714.99.8000 were not included in List 3, but are in List 4. That includes all parts and accessories that don't have their own specific HTS code, everything from kickstands to toe clips to axle extenders. Last year, the U.S. imported nearly $40 million worth of products under that code. Those products have a pre-existing tariff of 10%, so the total starting Sept. 1 will be 20%.