The Blue Max 57cc 22 in. chainsaw features a single cylinder, 2 stroke engine that has an idling speed of 2,700 - 3,400 RPM and has a maximum speed with the cutting equipment of 10,500 RPM. It features a low range kick-back chain brake for additional safety. Blue Max also wants to make sure your chainsaw lasts as long as possible so we designed an automatic bar chain oil feed system to keep your chain consistently lubricated and It is center balanced with anti-vibration handle for maximum control and minimum fatigue.