MaxCuttingDiameter:20 /22 EngineType:Two-stroke,aircooled,gasolineengine Displacement:57.2CC RatedOutputPower:2.6kw/7500r/min IdlingSpeed:2800r/min Two-cycleOil/GasolineMixingRatio:1:25 FuelTankCapacity:550ml EngineOilTankCapacity:260ml ChainPitch/ChainGauge:.325/3/8 /0.058