52 ASA Aluminum Extensions | Profile Design

Profile Design 52 ASA Aluminum Black Aerobar Extensions

The Profile Design 52 ASA are ergonomic aerobar extensions designed to enhance comfort, support, and aerodynamics in triathlon and time trials.

Their 52° grip angle promotes a high hand position and improved wrist support. The 16mm lateral offset allows for adjusting hand width without excessively tilting the extensions, while the aerodynamic Kamm profile reduces drag.

Made from 6061-T6 aluminum, they feature the enveloping shape of ASC carbon extensions in a more accessible version. Their standard 22.2mm diameter ensures compatibility with most aerobars on the market.

Perfect for

• Long-distance triathlon
• Time trials
• Seeking a high-hand position
• Improving wrist comfort
• Optimizing aerodynamic position
• Replacing 22.2mm diameter extensions
• Electronic or mechanical shifting

Features

• Ergonomic shape naturally conforming to the forearms
• 52° grip angle
• Significant rise for a high-hand position
• Lateral offset facilitating width adjustment
• Kamm-type aerodynamic profile
• Ergonomic ends for comfortable grip
• Robust 6061-T6 aluminum construction
• Standard 22.2mm clamp area
• Internal cable routing from the rear
• Compatible with electronic and mechanical shifters
• Sold as a pair: right and left extensions

Specifications

• Brand: Profile Design
• Model: 52 ASA
• Material: 6061-T6 aluminum
• Available lengths: 340 mm or 400 mm
• Minimum length from the front of the clamp:
  • 340 mm version: 225 mm
  • 400 mm version: 285 mm
• Angle: 52°
• Rise: 137 mm
• Lateral offset: 16 mm
• Outer diameter: 22.2 mm
• Inner diameter: 19.2 mm
• Weight for 340 mm version: 250 g per pair
• Weight for 400 mm version: 304 g per pair
• Shifter compatibility: electronic or mechanical
• Color: Anodized matte black
• Packaging: Right and left pair