Subsonic Ergo 39a Aerobar

The Subsonic/Ergo/39a aerobar combines the low stack Subsonic bracket with the arm hugging Ergo armrest to offer an industry leading fit range oriented towards low, narrow positions. The 39a extension offers a comfortable 39 degree angle with a 87mm rise.

This bar is compatible with Profile Design riser kits to increase the stack without changing the relationship between the armrest and the grips. The Ergo armrest has been designed to tightly cup the riders arms – facilitating a narrow position and increasing control at speed.

The Subsonic/Ergo is designed to achieve a lower stack height than standard aerobars, without the added frontal area of a below the base bar extension clamping system. This improves aerodynamics and the fit range.

Specifications

• Colour: Black
• Bracket: Subsonic
• Armrest: Ergo / 10mm Pads
• Armrest Width: 142mm to 272mm in 18.5mm steps (with extensions at 100mm)
• Armrest Offset: -85mm to -17.5mm in 7.5mm steps
• Armrest Stack: Minimum 40mm (no riser kit) to 70mm in 5mm increments (with risers)
• Extension Length: 340mm
• Extension Angle: 39°
• Clamp Diameter: 31.8mm (26.0 w/Shims)
• Weight: 590g