Husqvarna X-TOUGH RSN (Replaceable Sprocket Nose) bars are our most robust sprocket tip bars. Thanks to the design, characterized by a solid steel body with increased rail hardness and optimized oil bore, maintenance effort is reduced and high productivity can be achieved. The load is transferred to the high-quality roller bearing with support guards, resulting in less friction and extended service life. The robust and patented RSN shape and triple rivet assembly offer high durability and make the bar less susceptible to abuse. The replacement tip is available as a spare part.