MaxCuttingDiameter:500mmEngineType:Two-stroke,aircooled,gasolineengineDisplacement:51.2CCRatedOutputPower:2.2kw/7500r/minIdlingSpeed:2800r/minTwo-cycleOil/GasolineMixingRatio:1:25FuelTankCapacity:550mlEngineOilTankCapacity:260mlChainPitch/ChainGauge:.325/3/8 /0.058