Dual Box
From Wikipedia, the free encyclopedia
Dual Box or DualBox is the trademark name for the patented tubular sidewall inline skating frame.
Designed in 1999 by Dutch Design Engineer Diederik Hol at Mogema, the Dual Box design was devised to optimize the elastic properties of inline skate frames (which the skater interprets as stiffness and feel, and contribute greatly to ride quality and power transmission) via the mechanical properties of the tubular sidewalls to enhance rigidity.
The Dual Box design successfully eliminates the need for horizontal cross-bracing in inline skate frames, and provided progressive flexural feel for the skater rather than the isolated areas of varying stiffness which were inherent to many, more traditional double-void extrusion frames.
Through a product partnership with Mogema, the Rollerblade professional racing team debuted the Dual Box frame to the world in 2001 after which time team athletes rode Dual Box frames across the finish line first in numerous Swiss Inline Cup, World Inline Cup and World Championship events. During this time the Dual Box cemented itself as one of the most successful frame designs in speed skating, with 45 athletes winning their Gold, Silver and Bronze medals at the 2001 World Speed Skating Championship on Mogema frames.
Since 2003, the Rollerblade company has produced Dual Box frames under licence from Mogema and has specified Dual Box technology in their high-performance skate product lines. Today, the second evolution of the Dual Box tubular sidewall extrusion shape is featured across Mogema's current racing frames.
