Chinese engine factory
Taizhou Zhongneng (ZNEN): every American brand built here
Federal certification records name Taizhou Zhongneng (ZNEN) as the engine manufacturer behind 20 American powersports brands, covering street-legal scooters and motorcycles. Here is the full list, model year by model year.
- US brands
- 20
- Model years
- 2008–2026
- Engine families
- 172
- Displacement
- 49–244cc
American brands supplied by Taizhou Zhongneng (ZNEN)
| US brand (certificate holder) | Model years | Engine families | Models certified |
|---|---|---|---|
| AA Powersports Inc. | 2009 | 2 | 9 |
| Amstar Motors LLC | 2009–2026 | 54 | 346 |
| Baja Inc. | 2009–2016 | 44 | 83 |
| Bintelli LLC | 2013–2016 | 8 | 24 |
| BMS Motorsports, Inc. | 2008–2026 | 117 | 177 |
| Chironex Inc. | 2010–2013 | 10 | 22 |
| Cmsi Inc. | 2008–2010 | 3 | 20 |
| Flyscooters LLC | 2009–2010 | 5 | 18 |
| Genuine Scooters, LLC | 2016–2027 | 32 | 31 |
| Hammer Brand, LLC | 2009–2026 | 40 | 38 |
| Italica Motors Inc | 2012–2026 | 4 | 22 |
| Lance Powersports Inc. | 2009–2024 | 44 | 59 |
| North American Imports,LLC | 2009–2010 | 6 | 22 |
| Puma Cycles Corporation | 2009–2013 | 13 | 85 |
| Qlink-Keeway America, LLC Dba Qbk Motors | 2008–2013 | 27 | 51 |
| Scootstar, Inc. | 2019–2023 | 5 | 4 |
| Stealth Muffler Corporation | 2009 | 1 | 3 |
| Sunbeam Motorsports Inc. | 2009 | 2 | 9 |
| Value Group Enterprises Dba SSR Motorsports | 2012–2026 | 68 | 67 |
| ZNEN Power Sports, Inc. | 2007–2008 | 6 | 82 |
Which of those machines are actually comparable
A shared factory alone is a weak signal — Taizhou Zhongneng (ZNEN) builds engines across 49–244cc. Grouping by engine size narrows it to machines genuinely worth comparing.
VIN prefixes assigned to Taizhou Zhongneng (ZNEN)
If your frame number starts with one of these three characters, NHTSA has it recorded against this manufacturer. Check the first three characters of the VIN stamped on the frame or shown on the VIN plate.
| VIN starts with | Company as NHTSA records it | Vehicle type |
|---|---|---|
| L5Y | TAIZHOU ZHONGNENG MOTORCYCLE CO., LTD. | Motorcycle |
A VIN prefix identifies the company that registered the code, which is not always the company that built your engine — importers sometimes register their own. Treat it as corroboration for the emission label, not a replacement for it.
How this factory appears in the raw federal record
Each importer types the factory name into the certification form by hand, so one factory arrives in the data as many different companies. These 5 strings were reconciled into the single entry above.
- Taizhou Zhongneng Motorcycle CO. LTD
- Taizhou Zhongneng Motorcycle Co. LTD
- Taizhou Zhongneng Motorcycle Co., Ltd.
- Taizhou Zhongneng Motorcycle Co.,Ltd.
- Zhongneng Industry Group
Related in the registry
- Same factory does not mean same partRead this before ordering anything
- Where to find your emission stickerBy body style
- Free printable measuring gaugesBelts, rollers, carburettor spigots
- All 98 multi-brand factories
Source. US EPA annual certification data — EPA Certified Highway Motorcycle Test Results, MY2006-present; EPA Certified Off-Road Motorcycle / ATV / UTV / Rec Vehicle, MY2006-present. Retrieved 2026-09-07. This page describes 191 certificate records naming Taizhou Zhongneng (ZNEN). Full provenance and method.