Who actually makes Williams Custom Bikes Ltd.?

What the Williams Custom Bikes filings say about the engines

Williams Custom Bikes has filed only fuel-injected engines: 2 certificate rows and no carburettors at all, so a jet kit is the wrong search for any of them.

None of the 2 filings is a 50-state certification: these were sold as 49-state machines, not certified for California.

Rated power on the record is 25 kW (about 34 hp).

The vehicle builder named on every row is Lifeng Group Co. LTD.

Each figure is read straight off the EPA certificate rows; the per-family pages below carry the full breakdown for every engine family.

The factory

• Lifeng Group

  Also builds engines for 4 other American brands. See the full list

Model names certified under Williams Custom Bikes Ltd.

1 distinct model designations appear on this brand's certificates. Yours should be among them — importers sometimes market a machine under a different name than the one they certified.

Chopper