EPA engine family
Engine family 8KNXC.050SAA
If this code is printed on your emission label, this is your machine's federal record: sold under Konced Motorcycle Co., (Usa) Ltd., with an engine built by Chongqing Loncin, certified as street-legal scooters and motorcycles.
- Displacement
- 49cc
- Model years
- 2008
- Models certified
- 15
- Certificates
- 1
What this record says
- Sold in the US by
- Konced Motorcycle Co., (Usa) Ltd.
- Engine built by
- Chongqing Loncin
- Vehicle category
- Highway Motorcycle - Ia (<50cc)
- Certificate numbers
- 8KNXC.050SAA-002
What the number itself says
Reading 8KNXC.050SAA left to right: 8 is the model-year letter for 2008, KNX is the three-character code the EPA assigned to Konced Motorcycle Co., (Usa) as certificate holder, C marks a highway (street-legal) certification, .050 is the displacement in litres, so 50cc and SAA is Konced Motorcycle Co., (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 certificate describes a four-stroke, single-cylinder engine with 2 valves per cylinder fed by carburettor, run by an ignition control module (CDI-type ignition). 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 2.1–6.2 kW (about 3–8 hp) at 7,000 rpm, driving through an automatic.
- Cylinders / valves
- 1 · 2 per cylinder
- Cycle
- four-stroke
- Fuel delivery
- carburettor
- Oxygen sensor
- no
- Engine control
- ICM
- Catalytic converter
- TWC, single bed, open loop
- Air injection
- PAIR
- Rated power
- 2.1–6.2 kW
- Rated speed
- 7,000 rpm
- Transmission
- automatic
- Sales area
- 49S
- Vehicle built by
- Cixi Konced Motorcycle Co., Ltd.
- Test vehicle model
- KX50QT-6
Filing history and where it was sold
Konced Motorcycle Co., (Usa) filed one certificate under this family, for model year 2008, sold as 49-state (not certified for sale in California).
The vehicle itself is recorded as built by Cixi Konced Motorcycle Co., Ltd. in China, while the engine came from Chongqing Loncin. Chassis parts and engine parts therefore have different origins.
Certified emission levels: CO 1.3, HC 0.22, NOx 0.22 g/km.
Models certified under 8KNXC.050SAA
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.
KX50QT-10 · KX50QT-10A · KX50QT-11 · KX50QT-12 · KX50QT-13 · KX50QT-16 · KX50QT-3 · KX50QT-4 · KX50QT-6 · KX50QT-68 · KX50QT-6A · KX50QT-7 · KX50QT-8 · KX50QT-8A · KX50QT-9
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.