After many years of research and development, Elite Engineering has developed an advanced series of propeller bushings with a strong and high tensile. They are made of Aluminium Bronze and copper base alloys material. With the required equipment the hubs are designed to install simply by pressing them into the hub with minimal of effort. However, they still offer excellent gripping force to keep the propeller from slipping. They increase acceleration and reduce wheel hop all while maintain smooth traction feel.