Profile Design Sonic Ergo 52a Aerobar – Comfort-Focused Aerodynamics for Endurance Riders

The Profile Design Sonic Ergo 52a Aerobar is crafted for riders who demand both aerodynamic efficiency and lasting comfort over long distances. Combining the proven Sonic bracket with the ergonomically refined Ergo armrest system, this setup offers exceptional fit adjustability, low frontal area, and a comfort-first riding position ideal for Ironman triathlons and extended time trials.

Key Features & Design Highlights

🔹 Sonic Bracket
Engineered for simplicity, adjustability, and aerodynamic precision, the Sonic bracket delivers:

• Extensive fit range allowing fine-tuning of reach, stack, and angle.

• Low weight and minimal frontal area for optimized aerodynamics.

• Easy adjustment system to accommodate different riding styles and body geometries.
  Together with the Ergo armrests, it creates a cockpit setup that maximizes both speed and comfort for endurance athletes.

🔹 Ergo Armrest System
The Ergo armrest is designed for superior comfort and control, helping riders maintain an aerodynamic position without fatigue.

• Smooth, contoured shape that naturally cups the elbows.

• Multiple width and offset configurations for precise fit adjustment.

• Compatible with a wide range of Profile Design aerobars and extension systems.

🔹 52a Extensions
The 52a aluminum extensions are the latest evolution in Profile Design’s proven alloy range.

• Feature a 52° rise for a relaxed wrist and shoulder angle, perfect for long hours in the aero position.

• Ideal for Ironman-distance triathlons and long time trials, where comfort and endurance matter most.

• Constructed from durable 6061-T6 aluminum for reliable performance and longevity.

Technical Highlights

SpecificationDetailBracket SystemSonicArmrest TypeErgoExtension Model52aExtension Material6061-T6 AluminumExtension Angle52° riseFit AdjustabilityStack, reach, and armrest widthFrontal AreaLow profile aerodynamic designIdeal ForLong-distance triathlons & time trialsWeightLightweight alloy construction

Why Choose the Sonic Ergo 52a

• Highest rise in the Sonic Ergo lineup for a comfort-first fit.

• Fully adjustable cockpit for stack, reach, and width.

• Perfect for endurance events like Ironman and long TTs.

• Low-drag, lightweight design that supports aerodynamic efficiency without compromising comfort.

For athletes seeking the ideal balance of comfort, adjustability, and speed, the Profile Design Sonic Ergo 52a Aerobar delivers a refined, endurance-optimized cockpit built for all-day aerodynamic performance.