Dafier motorcycle engines
EPA certification records list 22 highway motorcycle engine families from Dafier, model years 2006–2015. Rated power ranges from 2 to 14 kW, median 6 kW. All listed families displace 49 cc. The most families were certified in 2007 (4).
Engine families22
Engine models9
Model years2006–2015
Power range2–14 kWmedian 6 kW
Displacement49 cc – 49 cc
Rank in category#50of 108 makers by families
Families certified per year
Technical mix
Fuel
Gas22
Configuration
422
Cylinders
1 cyl22
Most certified engine models
139Qmb9K172Ymm4P157Qmj3166Fml1152Fmh1Ohc1K1661M125Fmh1I21
Engine families
| Family | Model | Year | Displacement | Power | Fuel |
|---|---|---|---|---|---|
FDFRC.049QQA | 139Qmb | 2015 | 49 cc | 2 kW | Gas |
FDFRC.249GYB | K172Ymm | 2015 | — | 14 kW | Gas |
EDFRC.049QQA | 139Qmb | 2014 | 49 cc | 2 kW | Gas |
EDFRC.249GYB | K172Ymm | 2014 | — | 14 kW | Gas |
DDFRC.049QQA | 139Qmb | 2013 | 49 cc | 2 kW | Gas |
CDFRC.049QQA | 139Qmb | 2012 | 49 cc | 2 kW | Gas |
CDFRC.249GYB | K172Ymm | 2012 | — | 14 kW | Gas |
BDFRC.049QQA | 139Qmb | 2011 | 49 cc | 2 kW | Gas |
BDFRC.150QQA | P157Qmj | 2011 | — | 6 kW | Gas |
BDFRC.249GYB | K172Ymm | 2011 | — | 14 kW | Gas |
ADFRC.0509AA | 139Qmb | 2010 | 49 cc | 2 kW | Gas |
ADFRC.150QQA | P157Qmj | 2010 | — | 6 kW | Gas |
9DFRC.0509AA | 139Qmb | 2009 | 49 cc | 2 kW | Gas |
9DFRC.150QQA | P157Qmj | 2009 | — | 6 kW | Gas |
8DFRC.0509AA | 139Qmb | 2008 | 49 cc | 2 kW | Gas |
7DFRC.0509AA | 139Qmb | 2007 | 49 cc | 2 kW | Gas |
7DFRC.1109KA | 152Fmh | 2007 | — | 5 kW | Gas |
7DFRC.1509FA | Ohc | 2007 | — | 6 kW | Gas |
7DFRC.2004MA | 166Fml | 2007 | — | 12 kW | Gas |
6DFRC.1109KA | M125Fmh | 2006 | — | 5 kW | Gas |
6DFRC.1509FA | I2 | 2006 | — | 6 kW | Gas |
6DFRC.2004MA | K166 | 2006 | — | 12 kW | Gas |
Other motorcycle engines makers
Source
US Environmental Protection Agency engine certification data. Model year and manufacturer are decoded from EPA engine family codes (EPA codes:DFR). 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
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