The Sonic extensions, lightweight and compact, combined with the Ergo armrests, provide precise position adjustment to combine speed and comfort.

• Reduced frontal area for limited aerodynamic drag.
• Specific 52° angle adaptable to your position (high or low).
• Adjustable length and rotation via top bolt.
• Up to 100 possible positions with the armrests alone.
• Fine adjustments: adjustable width (124–290 mm), reach (–70 to –17.5 mm), height (60–130 mm with spacers).