Model : wuds045P Displacement : 45㎝3/2.7cu.inch Maximum power : 1.8kw/2.5hp Rpm at maximum power : 7500 rpm Operating range : 6,000-10,000 rpm Noise,power/pressure: 105/95db(A) Vibrations,front/rear handle: 4.8m/s2 / 6.5m/s2 Dry weight,less attachment : 4.6kg/10.1lbs Fuel tank volume : 0.55litre/18.6oz Oil tank volume : 0.26litre/8.8oz Chain pitch : .325inch Chain gauge : .058inch Recommended bar lengths : 14 to 18 inch Air Injection : Yes Low Vibration : Yes Easy Off Filter Cover : Yes Adjustable Oiler : Yes