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The Scooter Parts Registry

Shared-engine cohort

Chongqing Zongshen 450cc: the American badges sharing this engine

2 American brands certified 450cc machines built by Chongqing Zongshen between 2020–2026 — ATVs, street-legal scooters and motorcycles. These are the machines most likely to share components with yours.

American badges
2
Model years
2020–2026
Exact displacements
378–495cc
Engine families
12

Every badge in this cohort

US certificate holders with 450cc machines from Chongqing Zongshen
American brandYears in this cohortModels certified
Answer Motor LLC2021–20263
Seidner Ventures, Inc.2020–202319

The strongest matches: same factory, same size, same year

In these model years, two or more American brands certified 450cc machines from Chongqing Zongshen simultaneously. Machines built alongside each other are the most likely to share components — though still not guaranteed to.

Model years with two or more brands certified together
Model yearBrands certified that year
2023Answer Motor LLC · Seidner Ventures, Inc.
2022Answer Motor LLC · Seidner Ventures, Inc.
2021Answer Motor LLC · Seidner Ventures, Inc.

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. Full provenance and method.