Gates Hi-Power II Belt A75 Gates Hi-Power II belts have concave sidewalls to distribute wear evenly while providing proper belt support for improved service life. Flex-bonded cords and Flex-Weave covers make them the No. 1 choice for heavy-duty conventional V-belt drives. Flex-bonded cords are strongly bonded to the body of the belt resulting in equal load distribution and the absorption of bending stress without cord deterioration. Patented fabric construction for longer cover life, providing extending protection to the core of the belt core from oil, dirt and heat.