2022 NAICS national industry in sector 31-33 Manufacturing
336991 Motorcycle, Bicycle, and Parts Manufacturing
NAICS 336991 is the US industry code for motorcycle, bicycle, and parts manufacturing. This U.S.
- Code
- 336991 (2022 NAICS)
- Title
- Motorcycle, Bicycle, and Parts Manufacturing
- Part of
- Other Transportation Equipment Manufacturing
- SBA small business limit
- Up to 1,050 employees
- Closest UK SIC
- 30910, 30920 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This U.S. industry comprises establishments primarily engaged in manufacturing motorcycles, bicycles, tricycles and similar equipment, and parts.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Manufacturing children's vehicles (except bicycles and metal tricycles) are classified in Industry 339930, Doll, Toy, and Game Manufacturing.
- Manufacturing powered golf carts and other similar motorized passenger carriers are classified in U.S. Industry 336999, All Other Transportation Equipment Manufacturing.
Activities listed under 336991
The Census index assigns these 7 activities to this code. If your business matches one, this is your code.
- Bicycles and parts manufacturing
- Electric bicycles manufacturing
- Mopeds and parts manufacturing
- Motor scooters manufacturing
- Motorcycles and parts manufacturing
- Tricycles, metal, adult and children's, manufacturing
- Vehicle, children's, metal manufacturing
SBA size standard for 336991
To count as a small business for SBA loans and federal contracts under NAICS 336991, your business (including affiliates) must not exceed 1,050 employees. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 3091, 3092), so treat them as a starting point and check the definition.
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.