The 455 Rancher is an ideal saw for landowners and part-time users who require a high powered, heavy-duty and responsive workmate for all cutting conditions. It combines the best characteristics of its predecessor with new, facilitating technology and ergonomics. X-Torq® engine technology reduces fuel consumption up to 20% and emissions up to 60%. Quick-release air filter facilitates cleaning and replacement of the air filter. Combined choke/stop control allows for easier starting and reduces the risk of engine flooding. Air Injection Centrifugal air cleaning system removes larger dust and debris particles before reaching the air filter. This results in reduced air filter cleanings and improved engine life. Side-mounted chain tensioner easier access to chain tensioning device.