The Supersonic bracket (previously know as the J5) is the first and premier model of the new generation Profile Design brackets.  It offers easier adjustments and a greater fit range than anything that came before it.

Paring this bracket with the ergo armrest offers industry leading fit options and greater comfort.

Performance

The Supersonic/Ergo platform is designed to give riders the freedom to find their best possible position with a huge range of independence adjustments.

Fit Data

• 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)