Engines

Off-road motorcycles, ATVs and UTVs

Engines for dirt bikes, all-terrain and utility vehicles. EPA certification records cover 5,245 engine families from 99 manufacturers; Yamaha has the most, with 374.

Manufacturers99
Engine families5,245
ManufacturerFamiliesModel yearsPower range
Yamaha3742007–20272–605 kW
Honda3552006–20272–77 kW
Polaris3392007–20272–168 kW
BRP (Bombardier Recreational Products)3052007–20274–179 kW
Hisun Motors2372012–20272–49 kW
Kawasaki2232006–20275–186 kW
Kymco1952007–20272–34 kW
CFMOTO Powersports1932007–20275–155 kW
Arctic Cat1632006–20263–93 kW
Suzuki1512007–20261–37 kW
Tao Motor1262017–20271–71 kW
Linhai1212007–20263–32 kW
Massimo Motor Sports992015–20272–64 kW
BMS Motorsports932007–20263–85 kW
Lil Pick Up912010–20265–64 kW
Pacific Rim International West882008–20272–19 kW
John Deere842008–202611–46 kW
Taotao782009–20181–14 kW
Ricky Power Sports762014–20262–13 kW
Maxtrade COOLSTER752008–20263–12 kW
Textron Specialized Vehicles652016–20255–93 kW
Apollo Motorsports552007–20254–12 kW
XMotos532007–20262–12 kW
Lianmei462012–20266–8 kW
Apollo Power Sports452021–20263–17 kW
Segway Powersports442021–202628–173 kW
Tomoto Industries442007–20113–42 kW
KTM412006–202417–44 kW
Baja402010–20161–12 kW
Jass Motorsports382015–20262–6 kW
Xingyue382007–20121–20 kW
EGL Motor352017–20266–14 kW
Sunyee Sports352017–20266–11 kW
U-Storm Power342013–20267–50 kW
Kandi332007–20156–26 kW
LuYuan322011–20261–5 kW
Hensim312006–20092–15 kW
Kayo302022–20272–22 kW
Mars Carts302021–20266–24 kW
XY Powersports292007–20156–50 kW
Fang Power282013–20266–29 kW
Raytech282018–20261–19 kW
KT Powersports272015–20266–8 kW
Sigma Moto252013–202616–62 kW
Kangchao Group242006–20093–16 kW
Easy Vehicle232007–20144–13 kW
Dongfang Motor232012–20265–12 kW
Golden Wing Industry232022–20263–53 kW
American Lifan232007–20102–18 kW
Zuma Extreme Sports222021–20262–20 kW
Tomcar Holding212009–202226–80 kW
Intimidator212013–202319–62 kW
Vitacci Motorcycles202016–20265–8 kW
Shenke202008–20144–12 kW
Rokon International202007–20264–5 kW
Bennche202015–201712–49 kW
Asian Ventures202006–20122–26 kW
JCL Powersports202008–20125–14 kW
Kubota192018–202636–40 kW
QJ Motor192020–20264–8 kW
KXD Motor192013–20261–7 kW
Loncin192008–20114–24 kW
High Rev Motorsports182008–20141–16 kW
ARGO182020–20265–62 kW
Goldenvale182007–20094–26 kW
Shanghai Xingyue172009–201939–67 kW
Buffalo Powersports172015–20266–7 kW
Golden Stone Motorsports172018–20247–30 kW
Team Joyner172007–20096–298 kW
Eton162007–20144–13 kW
Fushin162006–20092–10 kW
Conqueror Rule152024–20261–9 kW
ODES Industries152015–20206–62 kW
WMW Group152010–20186–29 kW
YX Motors152010–20186–27 kW
Peace Industry Group152008–20155–13 kW
Carter Brothers152006–20116–30 kW
FYM Group152007–20092–34 kW
Shineray142006–20093–15 kW
Global Resource Development132014–20196–22 kW
Monster Moto132014–20191–5 kW
Hammerhead Off-Road122007–20103–24 kW
SunL Group122006–20094–49 kW
Trail Blazer Powersports122024–20266–23 kW
ASW122014–20257–18 kW
Joyner122011–201938–50 kW
VICOO Industry122007–20092–12 kW
Jinling International112017–20261–12 kW
APT Powersport and Utility112011–20182–6 kW
JMC Motors112013–201638–80 kW
Beta112008–201534–34 kW
Jacobsen112006–201525–26 kW
MTD Consumer Group112008–201411–20 kW
AHA Motorsports102013–20208–23 kW
Telee Motor102022–20261–7 kW
Dreamma Sports102021–20261–2 kW
Reo Carts102017–20206–19 kW
Kazuma Pacific102007–20093–10 kW
Wangliusa102006–20085–11 kW

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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