The Husqvarna 450X Rancher(R) is redefining ease for gas chainsaws. Whether the engine is cold or warm, the simple starting procedure delivers 40% easier starting*. While the pro-grade power of AutoTune(TM) automatically adjusts the engine settings to ensure maximum performance. The patented crankcase design has been optimized for engine cooling, helping deliver reliable and long-lasting performance. Our patented X-TORQ(R) engine maximizes power, even at low RPMs, to deliver an all-around powerhouse you can count on season after season. | Husqvarna 20" 450X Rancher Gas Powered Chainsaw