Product Highlights This RedMax trimmer is a powerful performer for homeowners as well as commercial contractors. The TRZ230S features a 22.5 cc, 0.94 horsepower engine and its light weight makes the trimmer extra portable for landscaping use. A Strato-Charged engine ensures up to 20% better fuel economy than a traditional two-stroke engine while increasing torque and improving emissions. A steel drive shaft with 7-point splined engagement ensures durability and quick acceleration. Specifications Dimensions Weight (excl. cutting equipment): 10.14 lbs Emissions Exhaust emissions (CO average): 495.18 g/kWh Engine Cylinder displacement: 22.5 cm³Power output: 0.94 hpFuel tank volume: 21.64 fl ozFuel consumption: 450 g/kWhIdling speed: 3000 rpmSpark plug: NGK BPMR8YElectrode gap: 0.03 inTorque, max. at rpm: 6500 rpmTorque, max.: 1 NmClutch engagement speed (±120): 4000 rpmMaximum rpm output shaft: 8208 rpm Gear Gear ratio: 1.462Drive gear angle: 60 °