Profile Design Supersonc Ergo+ 4525 SLC Aerobar - Ergo+ Armrest Supersonic Bracket 400mm. The Supersonic/Ergo+/SLC series aerobars offer industry leading ergonomics adjustability and low weight – maximizing your comfort and speed.The Supersonic is the top model of the Flyt series brackets – utilizing an innovative internal wedge clamp to securely hold the extension. It offers easier adjustments and a greater fit range than anything that came before it.

Armrest Offset: -85mm to -17.5mm in 7.5mm 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)

Clamp diameter: 31.8mm