High performance drive belts calibrated to maximize your sled’s performance. Aramid tensile cords used in construction for extra long life and dependability, also delivers a consistent length with minimal belt shrinkage and minimal length adjustments. High tensile reinforced fiber elastomer undercords provide minimal dusting and long term flex life. Flexweave overcord for superior adhesion and crack resistance. Consistent performance during life of belt. Quality you can count on for optimum performance Built with distinctive durability features for deep snow, trail or fast tracks.550 Fan (2010-2011)