✅ Free Metro Delivery Included ✅ Fast Dispatch ✅ Authorised Dealer Support ✅ Delivery options are confirmed at checkout based on order and location. ECHO CS-501SX Industry leading, lightweight professional petrol chain saw, ideal for felling. The lightest saw in its class, with enough power to breeze through any job. Part of the ECHO X Series meaning it has industry leading features and performance. Professional engine Featuring a powerful 50.2 cc profesional grade engine, giving exceptional power and performance. Compact, ergonomic design The lightest saw in its class, the CS-501SX has many features appreciated by professionals. These include a starter grip assist cap opener; dropout prevention nuts; a tool-less air filter cover allowing easy air filter access, even when wearing gloves; a side access chain tensioner enabling easy chain adjustment; an anti-icing system preventing the carburettor from freezing in colder months Starter grip assist caps Starter grip can be used to open the caps manually. Best Features. Lightweight Engineered to weigh less whilst retaining robust durability. Power to weight ratio Super light-weight design with exceptional power. Ergonomics Designed to maximise efficiency and comfort. Product Details Engine displacement (cm³) 50.2 Output (kW) 2.57 Output (ps) 3.50 Dry Weight (kg) 4.7 Fuel tank capacity (l) 0.50 Chain Oil Tank Capacity (mL) 280 Fuel Consumption At Maximum Engine Power (L/h) 1.54 Ignition System CDI Start Assist System Decomp Chain Brake Inertia Choke w/ Automatic Fast Idle Release Yes Chain Tensioner Side Saw Chain Pitch (inch) 0.325 Guide Bar Gauge (inch) 0.058, 0.050 Applicable Bar Length (cm/inch) 1 40, 45, 50 (33) / 16, 18, 20 (13) Vibration Front handle/Rear handle (m/s²) 5.5 / 5.8 Sound power level (dB(A)) 113.1 Sound pressure level (dB(A)) 105.5 CO² (g/kW・h) 2 742 1 Not all lengths available in every country. Available bar lengths may incur differing RRPs. Please check with your local dealer. 2 This CO² measurement results from testing a (parent) engine representative of the engine type (engine family) over a fixed test cycle under laboratory conditions and does not imply or express any guarantee of the performance of a particular engine.