Continental Elite 4050410 Poly-V Belt Continental Elite Poly-V belts quiet channel technology is designed for quiet performance, constructed for high efficiency. Quiet channel technology is a unique staggered-cog profile and advanced rubber compounds virtually eliminate noise typically associated with pulley misalignment High-strength tension members allow greater wear resistance Quiet channel technology also makes the belt more flexible and run cooler, resulting in a belt that lasts considerably longer than comparable belts