R 2,250.00

  • Bar Clamp 6Nm
  • Extension Clamp 6Nm
  • Armrest Bolts 4.7Nm
  • Bracket 234g
  • Armrests 130g
  • Extensions 195g

*Note: Kindly see Spec Sheet below

SKU: HB2326 Category:



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. 

Fit Data 

  • Armrest Offset -70mm to -2.5mm in 7.5mm steps
  • Armrest Width 124mm to 290mm in 18.5mm steps*
  • Armrest Stack 60mm to 70mm** in 5mm increments

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 adjust the extension width and tilt easily. This is the most adjustable clip on bar on the market (and in history). It is worth noting that our previous top level clip on aerobar, the J4/F35, offered 90 possible configurations. This highlights the significant step forward we’ve made with our new generation aerobars in allowing riders to precisely adjust their position.


After we released the Supersonic (J5) as a premium bracket with market leading fit options and versatility we wanted to bring the same kind of options to the rest of our range of brackets and thus aerobars. By simplifying the extension clamp and shifting the wing forward to the bar centreline we were able to meet our targets. As a consequence of the simplification the Sonic is the lightest of our current brackets. The Ergo armrest shares the flippable design of the rest of our new generation armrests. By swapping sides or rotating the armrests smaller increments of movement are achieved – making it simple to fine tune a riders position or match the position from their previous aerobar or bike.


The 50a extensions offer a 50deg ski bend shape. They also have a 7.5mm lateral shift per side (15mm total) to allow fine tuning of the grip width. They are 400mm long to allow a wide range of riders to fit. The cable routing is designed to exit from the rear of the extension.

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