Triathlon extenders

Profile Design 39ah Aerobar Extensions 400mm

The Profile Design 39AH Aluminum Extensions is intended to pair with their arm rest wedges to convert non-tilting aerobars to 10° or 15° tilting aerobars. The name means 39°, mounted in aluminum.

The angle of the extension starts at 54° and when adding a 15° shim, balances the angle to 39° (54°-15°=39°). Likewise, when paired with a 10° wedge, you get a total of 44° (54-10°=44°).

Performance

The sole purpose of the extensions is to provide a comfortable position for the rider's hands in relation to the arm rests. They improve performance by allowing the rider to relax in their optimal position. That's why they provide different fit options so that every rider can pursue their best performance.

Adjustment data

• Extension shape: Aerodynamic shape like other A-series extensions, it offers aerodynamic shaping in the rising section and a lateral offset for grip.
• The 39AH is a 54° elbow and when paired with a 15° shim it goes down to 39°.
• Use the 39AH with one of their arm rest wedge options and an Ergo+ or Race+ armrest to add recline and comfort to a non- Profile Design aerobar.

*Note: Arm rest wedges are not compatible with their Profile Design brackets, so the 39AH is not recommended for use with Profile Design bars.

Technical Guide

• All extensions have a diameter of 22.2mm in the clamping area. They are designed so that cables are routed to the back of the extensions and therefore have no cable exit holes.

For whom is this?

The extensions fit any aerobar designed for 22.2mm. They can therefore be used by any cyclist wishing to improve the comfort of their aerobar grips.

Construction

• Extension length: 365mm
• Extension angle: 39 degrees
• Extension height: 186mm (bottom to top)
• External diameter: 22.2mm
• Offset: 15mm total
• Included: Sold in pairs (1 Right Extension and 1 Left Extension)
• Material: 6061-T6 aluminum, pre-drilled for routing handlebar end shifter cables
• Colors: Matt Black Anodized
• Weight: 227g/pair