Profile Design Sonic Ergo 43a Wrist Relief Aero Bars

Aerobar

Out of Stock


The Sonic/Ergo is designed to present minimal frontal area to create as little aerodynamic drag as possible. The main purpose of an aerobar is, of course, to get the rider into a fast position. Despite a fairly minimalist appearance, the Sonic/Ergo offers a comprehensive fit range for exactly this purpose.

The extension length and rotation can be easily adjusted using the top bolt. There are 100 distinct position options achievable just by moving the armrests. Combine that with the risers and this bar offers 1500 possible configurations. As a clip-on bar, it is also possible to easily adjust the extension width and tilt. 

Since the Supersonic (J5) was released as a premium bracket with market-leading fit options and versatility, Profile Design wanted to bring the same kind of options to the rest of its brackets and aerobars. By simplifying the extension clamp and shifting the wing forward to the bar centreline, the company met its targets. As a consequence of the simplification, the Sonic is the lightest of its current brackets.

The Ergo armrest shares the flippable design of the rest of Profile Design's new generation armrests. By swapping sides or rotating the armrests, smaller increments of movement are achieved, making it simple to fine-tune a rider's position or match the position from their previous aerobar or bike.

Extensions

The 43a extension offers a "wrist relief"-style bend that allows the extension to hug to the arm for improved aerodynamics without sacrificing wrist comfort.

SPECIFICATIONS

bracket Sonic
armrest Ergo / 10mm Pads
width 124mm to 290mm in 18.5mm steps (with Extensions at 100mm)
offset -70mm to -2.5mm in 7.5mm steps
colour Matte Black
weight 559g
stack The minimum is 60mm and the bracket is compatible with existing Profile Design, risers which add up to 70mm of stack in 5mm incr

SPECIFICATIONS

Bracket Sonic
Armrest Ergo / 10mm Pads
Width 124mm to 290mm in 18.5mm steps (with Extensions at 100mm)
Offset -70mm to -2.5mm in 7.5mm steps
COLOUR Matte Black
Weight 559g
stack The minimum is 60mm and the bracket is compatible with existing Profile Design, risers which add up to 70mm of stack in 5mm incr