Profile Design 39aH Aerobar Extensions | 365 mm

The 39AH aluminum extensions are the ideal solution for riders who want to add elevation angle to fixed-position aerobars by pairing them with pad wedge spacers. Designed to deliver optimal comfort and aerodynamic positioning, these extensions allow fine-tuning of arm angle to achieve a more natural and efficient riding posture.

Key Features:

• Aero-Shaped Design: The A-series extension features an aerodynamic rise profile with lateral offset, offering improved airflow management and ergonomic arm positioning.
• Angle Customization with Pad Wedge Spacers:
  • Pair with 15° wedge for a final extension angle of 39°
  • Pair with 10° wedge for a final extension angle of 44°
• Compatibility:
  • Fits all aerobars using 22.2 mm clamps
  • Cable routing exits at the rear—no front drillings
  • Not compatible with Profile Design brackets due to pad wedge incompatibility; best used with Ergo+ or Race+ armrests

Technical Specifications:

• Extension Length: 365 mm
• Extension Angle: 39 degrees
• Extension Rise: 186 mm (bottom to top)
• Outer Diameter: 22.2 mm
• Offset: 15 mm total
• Includes: Sold as a pair (1 right, 1 left)
• Construction: 6061-T6 aluminum, pre-drilled for bar-end shifter cable routing
• Color: Anodized matte black
• Weight: 227 g/pair