Engines · Motorcycle engines

QJ Motor motorcycle engines

EPA certification records list 26 highway motorcycle engine families from QJ Motor, model years 2023–2026. Rated power ranges from 8 to 73 kW, median 19 kW. The most families were certified in 2026 (9).

Engine families26
Engine models9
Model years2023–2026
Power range8–73 kWmedian 19 kW
Rank in category#39of 108 makers by families

Power distribution

Number of engine families by rated power.

0–19 kW11
19–37 kW11
37–56 kW1
56–75 kW3

Families certified per year

20234
20246
20257
20269

Technical mix

Fuel
Gas26
Configuration
426
Cylinders
1 cyl142 cyl12

Most certified engine models

Bj265Mn-A4Bj173Fmq-A4Bj269Mr-A4Bj154Fmi-7A4Lj1P61Qmk-A3Lj1P75Mn3Bj283Mu-A2Bj270Ms-C1Gk2V92My-21

Engine families

FamilyModelYearPowerFuel
TQJNC.135MCABj154Fmi-7A20268 kWGas
TQJNC.172LJBLj1P61Qmk-A20268 kWGas
TQJNC.278LJCLj1P75Mn202619 kWGas
TQJNC.554QJABj270Ms-C202641 kWGas
TQJNC.698MCABj283Mu-A202673 kWGas
TQJNC.997GKAGk2V92My-2202665 kWGas
TQJNC0.30MCABj265Mn-A202624 kWGas
TQJNC0.38MCABj173Fmq-A202614 kWGas
TQJNC0.50MCABj269Mr-A202630 kWGas
SQJNC.135MCABj154Fmi-7A20258 kWGas
SQJNC.172LJBLj1P61Qmk-A20258 kWGas
SQJNC.278LJCLj1P75Mn202519 kWGas
SQJNC.698MCABj283Mu-A202573 kWGas
SQJNC0.30MCABj265Mn-A202524 kWGas
SQJNC0.38MCABj173Fmq-A202514 kWGas
SQJNC0.50MCABj269Mr-A202530 kWGas
RQJNC.135MCABj154Fmi-7A20248 kWGas
RQJNC.172LJBLj1P61Qmk-A20248 kWGas
RQJNC.278LJCLj1P75Mn202419 kWGas
RQJNC0.30MCABj265Mn-A202424 kWGas
RQJNC0.38MCABj173Fmq-A202414 kWGas
RQJNC0.50MCABj269Mr-A202430 kWGas
PQJNC.135MCABj154Fmi-7A20238 kWGas
PQJNC0.30MCABj265Mn-A202324 kWGas
PQJNC0.38MCABj173Fmq-A202314 kWGas
PQJNC0.50MCABj269Mr-A202330 kWGas

Other motorcycle engines makers

Honda497Yamaha455Piaggio437Kawasaki425Suzuki382Ducati327Triumph Motorcycles236Harley-Davidson211KTM199Kymco187BMW171Genuine Scooters112

Source

US Environmental Protection Agency engine certification data. Model year and manufacturer are decoded from EPA engine family codes (EPA codes:QJN). An engine family is a group of engines certified together; one family can cover several power ratings.

Engine calculators

Torque, power and BMEPPower from torque and RPM · Torque from power and RPM · Brake mean effective pressure (BMEP)Engine displacementDisplacement from bore, stroke and cylinders · Bore from displacement and stroke · Stroke from displacement and boreBSFC and thermal efficiencyBSFC from power and fuel flow · Fuel flow from power and BSFC · Thermal efficiency from BSFCCompression ratioStatic compression ratio · Chamber volume for a target compression ratio · Theoretical compression pressurePiston speedMean piston speed · Maximum RPM for a piston speed limit · Rod ratio, piston velocity and acceleration

All calculators →

Related pages