The efficiency of the Magnic Light technique is achieved by usage of extremely strong neodymium magnets. The neodymium magnets have an energy density of 52MGOe (magnetization N52).
This is the highest magnetization actually available for industrial applications. The magnets have a specially adapted form and are composed in a special arrangement.
The magnetization of neodymium magnets is almost unlimited, while other kinds of magnets may lose magnetization in the course of time without external influence of magnetic force.
The magnet ring shown here works with all kinds of metallic rims, beneath aluminium rims even with magnetic steel rims and even with steel discs of all kinds of disc brakes.