R66 OGM/FC
Diamond Cut
To produce mirror finishes and two-tone wheels, we use a diamond cut process.
Here the aluminum wheels are pre-painted and the surface is then turned using a diamond cutting tool. By removing a small amount of paint and aluminum, a shiny metallic, finely-honed surface is revealed. Diamond cut is performed especially on the wheel flange or on the spokes. This is how two-tone wheels are made – a real eye-catcher!
Undercut
Material that is not essential for wheel stability can go – thereby saving weight.
This principle of removing material behind the spokes that is not relevant to strength goes by the name of undercut for wheel manufacturing at the RONAL GROUP. Undercuts are produced either by machining or flowforming and can reduce wheel weight by between 600 g and 1.4 kg depending on dimension and design.
RONAL and SPEELINE CORSE winter wheels are marked with the snowflake icon. These winter-ready, pre-treated and painted alloy wheels are always the right choice even in the cold and wet season. They not only defy the weather, but are also a visual highlight in the snow to boot.