Extension for 31.8mm handlebars (road standard)

Sonic Ergo 43a Profile Design Extension

The Sonic/Ergo platform offers a wide adjustment range in every dimension - allowing riders to optimize comfort in their position. This bar can be used for project legal triathlon when shortened to meet the rules of the ITU.

Our new Sonic Stand was designed as the successor to the J2, which has been a somewhat overlooked part of our range. With this update, it brings our next-gen fit range to a wider price range, replacing the J2 mount. The Ergo armrest was created to provide both a huge improvement in the range of fit as well as increased rider comfort with a support curve to hug the arms.

Extensions

The 43a extension offers a "wrist relief" style bend that is intended to allow the extension to hug the arm for better aerodynamics without sacrificing wrist comfort.
With the neutral angle, the grips have a 7.5mm lateral offset to allow the rider to fine tune their hand position

Specifications

• Medium: sonic
• Clamp diameter: 31.8 mm (26.0 with shims)
• Armrest: Ergo / 10 mm pads
• Armrest width: 124 mm to 290 mm in steps of 18.5 mm (with extensions at 100 mm)
• Armrest offset: -70mm to -17.5mm in 7.5mm increments
• Stacking of armrests: minimum is 60mm and bracket is compatible with our existing risers which add up to 130mm of stacking with (70mm of spacers added)
• Color: matte black
• Weight: 545g

Technical sheet

Torque settings (all bolts are M6)

• Clamp: 6 Nm
• Extension clamp: 5 Nm
• Armrest bolts: 4.7 Nm
• lester

Support:

• Armrest: 130g
• Extensions:
• Total: 545g