SnowTracker - Carbide RunnerSnowTracker carbide runners are specialized, Canadian made, self sharpening wear bars designed to eliminate snowmobile darting, zigzagging, and swaying. They feature a 1 16 thin, 6 inch, or 8 inch carbide insert that provides 50% more grip in corners. They are available in Aggressive or Semi Aggressive kits with a "corrector" stabilizer for improved handling on icy trails.