Description

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 optimizing their position for both speed and comfort.

The 52A is one of the newest versions of our reliable aluminum extension range.

Performance

The Sonic/Ergo is designed to present minimal frontal area to create as little aerodynamic drag as possible. The main purpose of an aerobar is, of course, to get the rider into a fast position despite a fairly minimalist appearance the Sonic/Ergo offers a comprehensive fit range for exactly this purpose.

Fit Data

The 52a extensions have a 52° for the grip. The rider can choose whether to hold high for the shrugged position or low for a more open, head up position

Bracket: Sonic
Clamp Diameter: 31.8mm or (26.0 with Shim Kit - Shim Kit is sold separately)
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: 52 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
Tech Guide
Torque settings (all bolts are M6)

Bar Clamp: 6Nm (53 inlbf)
Extension Clamp: 6Nm (53 inlbf)
Armrest Bolts: 4.7Nm (42 inlbf)
Weight

Bracket: 234g
Armrest: 130g
Extensions: 222g 
Total: 586g