Product Highlights The MS 261 chainsaw delivers low exhaust emissions, high fuel efficiency, and, of course, professional-grade performance. Its redesigned cylinder and ergonomic housing deliver a great power-to-weight ratio, weighing just 10.8 lbs. Designed for large volume cutting, the MS 261 also features the STIHL anti-vibration system for enhanced comfort. Other convenience features include a pre-separation air filtration system and a redesigned spiked bumper. Add the MS 261 to your jobsite today. Specifications POWER SOURCE Gas POWERHEAD WEIGHT 10.8 lbs. GUIDE BAR LENGTH (Recommended) 16 in. OILOMATIC® CHAIN .325" RM3 CHAIN OIL CAPACITY 9.13 oz. ENGINE POWER 4.0 bhp FUEL CAPACITY 16.9 oz. DISPLACEMENT 50.2 cc INTENDED USE Professional Note: STIHL recommends #3695 (23 RM3 67) OILOMATIC® saw chain and 16" 3003 000 3313 Ematic™ guide bar combination. Compatible guide bar ranges: 16" to 20". The actual listed guide bar length can vary from the effective cutting length based on which powerhead it is installed on.