Profile Design SONIC/ERGO/39A Aerobar


  • similar products
  • you may also like
  • The Sonic bracket offers an extensive fit range, low weight and easy adjustment along with minimal frontal area. Combining this with the Ergo armrest creates an aerobar that will aid most riders in optimising their position for both speed and comfort.
    The 39A is one of the newest versions of our reliable aluminium extension range.

    Fit Data

    Armrest Offset: -70mm to -17.5mm in 7.5mm steps
    Armrest Width: 124mm to 290mm in 18.5mm steps (With Extensions at 100mm)
    Armrest Stack: 60mm (no riser kit) to 130mm in 5mm increments (With aftermarket Riser Kit)


    - Bracket: Sonic
    - 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: -70mm to -17.5mm in 7.5mm steps
    - Armrest Stack: The minimum is 60mm and the bracket is compatible with our existing risers which add up to 130mm stack with (70mm of spacers added)
    - Construction: 6061-T6 aluminum, pre-drilled for bar-end shifter cable routing
    - Extension Length: 400mm
    - Extension Angle: 39 Degrees
    - Extension Rise: 87mm (bottom to top)
    - Extension Offset: 15mm total
    - Outer Diameter: 22.2mm
    - Inner Diameter: 19.2mm
    - Shifter Compatibility: Electronic or Mechanical
    - Color: Anodized Matte Black
    - Weight: 564g


    Torque settings (all bolts are M6)
    - Bar Clamp: 6Nm (53 inlbf)
    - Extension Clamp: 6Nm (53 inlbf)
    - Armrest Bolts: 4.7Nm (42 inlbf)
    - Bracket: 234g
    - Armrest: 130g
    - Extensions: 204g/pair


    Weight: 162g (100mm)
    Length: 70, 80, 90, 100, 110, 120, 130mm (+/-17degree)
    Material: 3-D Forged 6061-T6 Aluminum
    Clamp Diameter: 31.8mm
    Angle: 73degree (+/-17degree)
    Steerer Tube Diameter: 11/8in
    Stack Height: 40mm
    Clamp Width: 40mm
    Clamp Tourque: 5Nm
    Finish: Matte Black with White Accents
  • Similar Products