Profile Design Sonic Ergo 50a Double Ski-Bend Aluminum Clip-on Aerobar

Low Price: $159.99
Add To Cart Save In List
In Stock Online!
FREE Shipping Eligible!
This item is eligible for Super Saver Shipping Learn More
This item earns up to 160 VIP Reward Points Learn More

This is the Sonic Ergo 50a aerobar. It is designed to help you cheat the wind by allowing you to get into an aerodynamic position. The simplistic clip-on design looks clean and is able to be added to most round bars.


  • Armrest Offset: -70mm to -2.5mm in 7.5mm steps
  • Armrest Width: 124mm to 290mm in 18.5mm steps (With Extensions at 100mm)
  • Armrest Stack: 60mm to 70mm in 5mm increments (With aftermarket Riser Kit)
  • Extension length and rotation can be easily adjusted using the top bolt 


Weight: 559g
Material: Aluminum
Length: 400mm 
Clamp: 31.8mm (26.0mm w/ Shims)

This product was added to our catalog on June 5, 2019

Verified Owner
Saturday, May 16 2020 (3 months ago)
Profile Design Sonic Ergo 50a Double Ski-Bend Aluminum Clip-on Aerobar
Like design and comfort. Only issue I had was the diameter requirement on the listing. Since I did not have a metric measure I unfortuately assumed it was the size I needed. When the bars came, I realized I needed the spacers that Bike Nashbar did not carry so had to order from Profile Design directly. Not a major issue. Had to download instructions. I did not like the way the instructions were provided since they were hard to read on the computer and did not print correctly. Had to cut and paste into Word the English version into Word and print. Need to improve that. Otherwise, I am happy with the purchase. The aerobars funtion as they should.