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Bimota Tesi Vyrus

The Bimota Tesi/Vyrus (above) uses a center-hub steering system that requires a comparatively complex linkage. Center-hub systems in general use very small steering bearings, necessary because there isn't much room in the hub. Also limited are steering offset and lock. The RADD setup boasts more direct steering, greater latitude in steering geometry and greater steering lock. Wheel removal is also far easier.
GSX-Radd P3 - Raddical - The Future Of Motor Cycling

The Bimota Tesi/Vyrus (above) uses a center-hub steering system that requires a comparatively complex linkage. Center-hub systems in general use very small steering bearings, necessary because there isn't much room in the hub. Also limited are steering offset and lock. The RADD setup boasts more direct steering, greater latitude in steering geometry and greater steering lock. Wheel removal is also far easier.  View Related Article