The CS-2511PN is the lightest gas-powered rear-handle chainsaw in North America with the most power in its class, now available with the 80TXL cutting system which features a nano-style chain for more efficient cutting with less vibration. Spring assist starter reduces starting effort. Comes with a a top mounted automatic, adjustable clutch-driven bar oiler which only runs when the chain is moving to reduce oil consumption. Rear-mounted, two-piece mesh air filter provides for easy access and easy cleaning. G-Force Engine Air Pre-Cleaner extends air filter life and reduces maintenance intervals. Palm rest for a secure hold and more saw control. Side-access chain tensioner for easy chain adjustments. Replaceable metal bumper spike improves user control and leverage.