Echo CS-4920 with 18" Bar The CS-4920 is a heavier duty version of the CS-4510. It features a 50.1 cm³ professional grade 2-stroke, stratified scavenging engine that provides more power and less emissions than any other saw in the same class. At just 5.0 kg with professional features like dual drop prevention bar nuts, a heavy-duty air filter with tool-less access and a momentary switch, it's ideal for a range of jobs. Features Power to weight ratio Super light-weight design with exceptional power. Ergonomics Designed to maximise efficiency and comfort. Easy start engine ECHO’s patented system for effortless starting. Technical Specifications Engine displacement (cc) 50.1 Output (kW) 2.5 Dry Weight (kg) 5.0 Fuel tank capacity (l) 0.48 Fuel Consumption At Maximum Engine Power (L/h) 1.32 Priming Pump Yes Ignition System CDI Start Assist System ES-Start Chain Brake Inertia Choke w/ Automatic Fast Idle Release Yes Chain Tensioner Side Saw Chain Pitch (inch) 0.325 Guide Bar Gauge (inch) 0.050 Applicable Bar Length (cm/inch) 1 45 / 18 Sound pressure level (dB(A)) 102.5 Sound power level (dB(A)) 111.8 CO² (g/kW・h) 2 808 Vibration Front handle/Rear handle (m/s²) 3.5 / 3.4
