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Profile Design

Profile Design - Supersonic Ergo+ 43 SLC Aerobar


Product Details


The Supersonic/Ergo+/SLC series aerobars offer industry leading ergonomics, adjustability and low weight – maximizing comfort and speed. The Supersonic is the top model of the Flyt series brackets – using an innovative internal wedge clamp to securely hold the extension. According to Profile Design, it offers easier adjustments and a greater fit range than anything that came before it. It is now paired with the new Ergo+ armrest that takes the popular Ergo shape and adds 40mm of length as well as a new textured cushion.

Fit Data

  • Armrest Offset: -85mm to -17.5mm in 15mm steps
  • Armrest Width: 124mm to 290mm in 18.5mm steps (with Extensions at 100mm)
  • Armrest Stack: 58.5mm (no riser kit) to 138.5mm in 5mm increments (with aftermarket Riser Kit)

There are 80 distinct position options achievable just by moving the armrests. Combine that with risers and this bar offers 1440 possible configurations. As a clip-on bar, it is also possible to adjust the extension width and tilt easily.


  • Extension Shape: The 43 SLC extensions offer a 43 deg ski bend shape

  • The 43 SLC offers a 7.5mm lateral shift per side. This allows the rider to get their hands narrower or wider without tilting the extensions so much that the shifters touch

  • The SLC extensions offer the same range of ergonomic options as the previous generation, but the weight is halved. This also allows Di2 parts to be fitted inside the extension
  • All the extensions have a 22.2mm diameter in the clamping area
  • They are 400mm long and can be cut to size to suit nearly every rider
  • They are drilled for rear-exit cable routing

Technical specifications:

  • Bracket: Supersonic
  • Clamp Diameter: 31.8mm (26.0 w/Shims)
  • Armrest: Ergo+ / 10mm Pads
  • Armrest Width: 124mm to 290mm in 18.5mm steps (with Extensions at 100mm)
  • Armrest Offset: -85mm to -17.5mm in 15mm steps
  • Armrest Stack: The minimum is 58.5mm and the bracket is compatible with our existing risers which add up to 138.5mm stack with (70mm of spacers added)
Code Description RRP (Inc. GST) Availability
D-RHCSNC432 Profile Supersonic/Ergo+/43 SLC Carbon Aerobar $509.90 In stock