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The Scooter Parts Registry

EPA engine family

Engine family SPCGC.049PGA

If this code is printed on your emission label, this is your machine's federal record: sold under Peace Industry Group (Usa), Inc., with an engine built by Zhejiang Xinba Technology Co.,Ltd, certified as street-legal scooters and motorcycles.

Displacement
49.3cc
Model years
2025
Models certified
20
Certificates
1

What this record says

Sold in the US by
Peace Industry Group (Usa), Inc.
Engine built by
Zhejiang Xinba Technology Co.,Ltd.
Vehicle category
Highway Motorcycle - Ia (<50cc)
Certificate numbers
SPCGC.049PGA-001

What the number itself says

Reading SPCGC.049PGA left to right: S is the model-year letter for 2025, PCG is the three-character code the EPA assigned to Peace Industry Group (Usa) as certificate holder, C marks a highway (street-legal) certification, .049 is the displacement in litres, so 49cc and PGA is Peace Industry Group (Usa)'s 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 Peace Industry Group (Usa) submitted for this family (model RY50QT-21) carried engine code 139QMB. In the Chinese engine-model convention that reads as one cylinder with a nominal 39 mm bore, QMB series. Against the certified 49.3cc that implies a stroke of roughly 41 mm — a sanity check for a piston or cylinder listing, not a published figure.

The certificate describes a four-stroke, single-cylinder engine with 2 valves per cylinder fed by carburettor. There is a catalytic converter in the exhaust, recorded as "TWC, single bed, open loop". The head carries a pulse secondary-air (PAIR) valve.

Rated power on the record is 2.2 kW (about 3 hp) at 7,000 rpm, driving through a CVT (belt and variator).

Engine code on test vehicle
139QMB
Nominal bore (from the code)
39 mm · implied stroke ≈ 41 mm
Cylinders / valves
1 · 2 per cylinder
Cycle
four-stroke
Fuel delivery
carburettor
Oxygen sensor
no
Engine control
other
Catalytic converter
TWC, single bed, open loop
Air injection
PAIR
Rated power
2.2 kW (≈3 hp)
Rated speed
7,000 rpm
Transmission
CVT (belt and variator)
Sales area
50S
Vehicle built by
Zhejiang Riya Motorcycle Co., Ltd.
Test vehicle model
RY50QT-21

Filing history and where it was sold

Peace Industry Group (Usa) filed one certificate under this family, for model year 2025, sold as 50-state, California included.

The vehicle itself is recorded as built by the same company, Zhejiang Riya Motorcycle Co., Ltd. in China — engine and chassis from one source.

Certified emission levels: CO 3.1, HC 0.4 g/km.

Other records carrying the same engine code

Peace Industry Group (Usa) certified an engine with this code under 5 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 32 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 SPCGC.049PGA

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.

RY50Q-22 · RY50Q-38 · RY50Q-43 · RY50QT · RY50QT-13 · RY50QT-15 · RY50QT-21 · RY50QT-26 · RY50QT-28 · RY50QT-31 · RY50QT-34 · RY50QT-35 · RY50QT-36 · RY50QT-37 · RY50QT-39 · RY50QT-4 · RY50QT-40 · RY50QT-41 · RY50QT-42 · RY50QT-44

Other American badges on engines from the same factory

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.