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The Scooter Parts Registry

Chinese engine factory

Chongqing Rato Technology Co., Ltd.: every American brand built here

Federal certification records name Chongqing Rato Technology Co., Ltd. as the engine manufacturer behind 4 American powersports brands, covering off-road machines. Here is the full list, model year by model year.

US brands
4
Model years
2017–2026
Engine families
14
Displacement
79–196cc

American brands supplied by Chongqing Rato Technology Co., Ltd.

Every US certificate holder naming this factory as engine manufacturer
US brand (certificate holder)Model yearsEngine familiesModels certified
Double Global Inc.2025–2026310
Dreamma Sports Inc.2021–20261016
Massimo Motor Sports, LLC2015–202796164
Stark Group LLC2023–202642

Which of those machines are actually comparable

A shared factory alone is a weak signal — Chongqing Rato Technology Co., Ltd. builds engines across 79–196cc. Grouping by engine size narrows it to machines genuinely worth comparing.

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 2 strings were reconciled into the single entry above.

  • CHONGQING RATO TECHNOLOGY CO., LTD.
  • Chongqing Rato Technology Co., Ltd.

Related in the registry

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 17 certificate records naming Chongqing Rato Technology Co., Ltd.. Full provenance and method.