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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
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Description
Sonic Ergo 39a AerobarThe 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 39A is one of the newest versions of our reliable aluminum extension range FEATURES: Performance: The Sonic Ergo is designed to present minimal frontal area to create as little aerodynamic drag as
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 39A is one of the newest versions of our reliable aluminum extension range
FEATURES:
- 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.
- The 39a extensions have a 39° for the grip . The rider can choose whether to hold high for the shrugged position or low for a more open, head up position.
-
Fit:
- 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)
SPECS:
- 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: 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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Great Display Shelf!
Color: Black Wood 5-tier, Size: 1PC, Color: Black Wood 5-tier, Size: 1PC
This shelf looks great! It fits perfectly within my space and has enough openings to store taller items and allow me to use the light switch behind. The wood is thin but solid and the total build took under 45 minutes.
and is pretty sturdy. It was a little difficult to screw the shelves into the wall but it has held secure since.
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Reviewed in the United States on March 18, 2026
★★★★★ 5
A purchase that exceeded my expectations!
Color: White Marble 5-tier, Size: 1PC
I am really delighted with this marble shelf. From the moment I received it, I knew it was the perfect choice for my business. The quality of the marble is exceptional: elegant, resistant and with an impeccable finish that adds a sophisticated touch to any space. In addition, its design is modern and functional, making it ideal for displaying products or items in an organized and stylish way. Installation was easy and the dimensions fit my needs perfectly. I would definitely recommend this shelf to anyone looking for a durable, beautiful piece of furniture that elevates the aesthetics of their business - a purchase that exceeded my expectations!
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Reviewed in the United States on June 24, 2025
★★★★★ 5
Easy to assemble
Color: Rustic Brown 5-tier, Size: 2PCS, Color: Rustic Brown 5-tier, Size: 2PCS
Very nice and sturdy easy to build, great price!
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Reviewed in the United States on January 20, 2026
★★★★★ 4
Easy to assemble.
Color: White Wood 5-tier, Size: 2PCS
I like that this item comes as a set of two. I found these to be very easy to assemble. The shelves came with plastic anchors and wood screws to mount them on the wall, but my husband and I chose molly-bolts for a more permanent and safer installation. The were easy to put together and not difficult to mount on the wall, but you need two people. The shelves are a good width and depth for what I am using them for. The measurements are as shown. They look nice on the wall of our guest room for out grandchildren and house their books on the lower shelves and other books and decor on the upper shelves which makes it nice. We can still display favorite items and keep them out of their reach - for now!
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Reviewed in the United States on May 31, 2025
★★★★★ 5
Easily put together
Color: Black Wood 5-tier, Size: 2PCS, Color: Black Wood 5-tier, Size: 2PCS
Not done with the decor but so far I love them
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Reviewed in the United States on April 26, 2026