Poly Chain™ ADV™ is the next step in the Poly Chain GT™ Carbon™ family of high performance synchronous belts. Poly Chain ADV has a distinctive red tooth color and offers a 15% increase in load capacity over current Poly Chain GT Carbon belts. Poly Chain ADV belts are intended to replace Poly Chain GT Carbon belts on drive systems with less than desired performance, where some extra load capacity is needed. Poly Chain ADV belts utilize improved technologies never before seen in power transmission belts, making Gates Poly Chain the most advanced belt in the world.