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Profile Design Sonic Ergo 43a Aero Bar Extensions

Profile Design Sonic Ergo 43a Aero Bar Extensions
  • Color: Black
Color: Black
Please select options Unavailable


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.

- Armrest Offset: -70mm to -2.5mm in 7.5mm steps
- Armrest Width: 124mm to 290mm in 18.5mm steps (with Extensions at 100mm)
- Armrest Stack: 60mm to 70mm in 5mm increments (with aftermarket Riser Kit)
- Extension length and rotation can be easily adjusted using the top bolt
- Weight: 545g

Part Numbers

Option UPC MPN Store SKU
Black 723660009328 RHSNC431 PRO37544872K