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The Scooter Parts Registry

EPA engine family

Engine family SAPOX.124DBA

If this code is printed on your emission label, this is your machine's federal record: sold under Apollo Power Sports Inc., with an engine built by Chongqing Yinxiang Motorcycle(Group) Co., Ltd, certified as off-road machines.

Displacement
—
Model years
2025
Models certified
16
Certificates
1

What this record says

Sold in the US by
Apollo Power Sports Inc.
Engine built by
Chongqing Yinxiang Motorcycle(Group) Co., Ltd
Vehicle category
Off-Road Motorcycle
Certificate numbers
SAPOX.124DBA-004

What the number itself says

Reading SAPOX.124DBA left to right: S is the model-year letter for 2025, APO is the three-character code the EPA assigned to Apollo Power Sports as certificate holder, X marks an off-road certification, .124 is the displacement in litres, so 124cc and DBA is Apollo Power Sports' own sequence for that year. Nothing in the number names the factory — that comes from the certificate itself.

The engine, as described on the certificate

The test vehicle Apollo Power Sports submitted for this family (model ADR125-21) carried engine code 154FMI. In the Chinese engine-model convention that reads as one cylinder with a nominal 54 mm bore, FMI series.

The certificate describes a four-stroke, single-cylinder engine with 2 valves per cylinder fed by carburettor. No catalytic converter is listed.

Rated power on the record is 6 kW (about 8 hp) at 7,500 rpm, driving through a 4-speed manual gearbox.

Engine code on test vehicle
154FMI
Nominal bore (from the code)
54 mm
Cylinders / valves
1 · 2 per cylinder
Cycle
four-stroke
Fuel delivery
carburettor
Oxygen sensor
no
Engine control
other
Catalytic converter
none listed
Rated power
6 kW (≈8 hp)
Rated speed
7,500 rpm
Transmission
4-speed manual gearbox
Sales area
50S
Vehicle built by
Zhejiang Apollo Sports Technology Co., Ltd.
Test vehicle model
ADR125-21

Filing history and where it was sold

Apollo Power Sports filed one certificate under this family, for model year 2025, sold as 50-state, California included.

The vehicle itself is recorded as built by Zhejiang Apollo Sports Technology Co., Ltd. in China, while the engine came from Chongqing Yinxiang Motorcycle(Group) Co., Ltd. Chassis parts and engine parts therefore have different origins.

Certified emission levels: CO 8, HC+NOx 0.8 g/km.

Other records carrying the same engine code

Apollo Power Sports certified an engine with this code under 12 other family numbers — the same engine filed again in another year, or in an off-road and a street version:

Other certificate holders whose test vehicle carried the same engine code (10 of 161 shown):

A shared code from the same factory is a strong search lead. From a different factory it is as often a naming coincidence. Either way it narrows the search; it does not settle it — measure before you buy.

Models certified under SAPOX.124DBA

Every model designation the importer listed on this certificate. If your machine's model name appears here, this is the right record — even if the name on the bodywork is slightly different.

ADR110-2 · ADR110-4 · ADR110-9 · ADR120-12 · ADR120-13 · ADR120-19 · ADR120-26 · ADR120-27 · ADR125 · ADR125-14 · ADR125-15 · ADR125-16 · ADR125-20 · ADR125-21 · ADR125-22 · ADR125-3

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.