SKU: 58958573970

PROFILE DESIGN AEROBAR TRI SONIC ERGO 50A

Sale price$1359.00 Regular price$1510.00
Save 10%

Pay in installments of $377.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 12 - Sep 17

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

PROFILE DESIGN AEROBAR TRI SONIC ERGO 50AOVERVIEW Our new Sonic bracket has been designed as the successor to the J2, which has been a somewhat ignored part of our range. With this update it brings our new generation fit range to a wider range of price points, replacing the J2 bracket. The Ergo armrest has been created to offer both a huge upgrade in fit range as well as increased rider comfort with a supportive curve to cup the arms. Performance The Sonic Ergo is designed to present minimal

OVERVIEW

Our new Sonic bracket has been designed as the successor to the J2, which has been a somewhat ignored part of our range.  With this update it brings our new generation fit range to a wider range of price points, replacing the J2 bracket.  The Ergo armrest has been created to offer both a huge upgrade in fit range as well as increased rider comfort with a supportive curve to cup the arms.

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

  • 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 (no riser kit) to 130mm in 5mm increments (With aftermarket Riser Kit)

    The extension length and rotation can be easily adjusted using the top bolt.

    There are 100 distinct position options achievable just by moving the armrests. Combine that with the risers and this bar offers 1500 possible configurations. As a clip on bar it is also possible to adjust the extension width and tilt easily. This is the most adjustable clip on bar on the market (and in history).

    It is worth noting that our previous top level clip on aerobar, the J4/F35, offered 90 possible configurations. This highlights the significant step forward we’ve made with our new generation aerobars in allowing riders to precisely adjust their position.

    Origin

    After we released the Supersonic (J5) as a premium bracket with market leading fit options and versatility we wanted to bring the same kind of options to the rest of our range of brackets and thus aerobars. By simplifying the extension clamp and shifting the wing forward to the bar centerline we were able to meet our targets. As a consequence of the simplification the Sonic is the lightest of our current brackets.

    The Ergo armrest shares the flippable design of the rest of our new generation armrests. By swapping sides or rotating the armrests smaller increments of movement are achieved – making it simple to fine tune a riders position or match the position from their previous aerobar or bike.

    Extensions

    • Extension Shape:  A 50a extensions offer a 50° ski bend shape.

    • The 50a offer a 7.5mm lateral shift per side.  This allows the rider to get their hands narrower or wider without tilting the extensions so much that the shifters touch.

    TECH SPECS
      • 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 -2.5mm 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)
      • Color: Matte Black
      • Weight: 564g
      TECH GUIDE

      Torque settings (all bolts are M6)

      • Bar Clamp: 6Nm
      • Extension Clamp: 6Nm
      • Armrest Bolts: 4.7Nm

      Weight

      • Bracket: 234g
      • Armrest: 130g
      • Extensions: 200g
      • Total: 564g
      Shipping Notes
      • Free Standard Shipping on $100+ Orders to the USA.
      • Except Preorder products are shipped in 48 hours.
      • Delivery to the USA:
      1. 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
      SKU: 58958573970

      Discover Niche Categories That Outsell

      Top-Converting Item to Boost Your Average Order

      4.6 ★★★★★
      Based on 26 reviews
      Sort
      Highest Rating
      Newest First
      Oldest First
      Product Reviews
      D
      Verified Purchase
      D MCCLEAN
      Pawtucket, US
      ★★★★★ 5
      Very Sturdy and attractive bar cart.
      Style: Square Carts
      I am very impressed with the quality of this bar cart. I purchased it for the appearance/styling of it. I looked at 20 - 30 bar carts and this one was the best fit to compliment my kitchen decor. I wasn't expecting the metal to be strong & sturdy, but it was. From the amazon photo, the metal frame looked lightweight and hollow. I also could not tell by the amazon photo if the gold matte finish would look cheap or elegant. I was very pleased with the finish. It was not the shiny brass type finish that I do not like. It was easy to assemble. A friendly F.Y.I. I spent a little bit of time looking for the assembly screws, expecting them to be in the bag with the wheels. They were screwed into the frame pieces which I think is a great idea when packing an item. It 's a good way of knowing that all the screws were sent and that they fit. I will note that because of the solidness of the frame, the delivered package might be a bit heavy for some. Also I found that using a drill on low speed with a star bit made the installation go very quickly.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on July 16, 2025
      M
      Verified Purchase
      miram ginsberg
      Alexandria, US
      ★★★★★ 5
      A beautiful and sturdy cart
      Style: Square Carts, Style: Square Carts
      I am so happy with this cart!!! It is very sturdy, great size, and highly recommend this beautiful cart!! Highly recommend, a great deal for this lovely sturdy Cart!!!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on April 7, 2026
      C
      Verified Purchase
      Customer
      Alexandria, US
      ★★★★★ 4
      Nice bar cart, Inaccurate shelf heights
      Style: 3 Tier Cart, Style: 3 Tier Cart
      Bar cart is nice, quite easy to put together. One of the most upsetting things is that the advertised/pictured 2nd shelf height is very wrong. It’s quoted at 18.1” tall but in reality it’s only 12.5”, the same as the bottom shelf - as confirmed in other reviewers photos. So half of my bottles have to go on the very top shelf. I reached out to the manufacturer about max shelf weight but they refused to give me an answer. I have about 30lbs+ on each shelf with the slightest bow in the center as there is only shelf support on the very ends.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on April 3, 2024
      F
      Verified Purchase
      Francesco Cuzakis
      Natrona Heights, US
      ★★★★★ 5
      Love it
      Style: Square Carts, Style: Square Carts
      Love it Strong stylish and move great Before I purchased I was looking at William Sonoma But this one at wonderful price and easy to assemble I would had paid more if came assembled But it was just 40 minutes to put it together Love it
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on January 9, 2026
      E
      Verified Purchase
      Eileen
      Port Orchard, US
      ★★★★★ 5
      Glass wheeled 3 tier cart
      Style: Square Carts
      It is great, great quality , easy assembly , looks even better in person than the picture advertised. Sturdy wheels beautiful smoked glass inserts. I am using mine to display my house plants . I highly recommend this for a mobile dessert ,or beverage cart as well. Cost was worth every penny.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on July 18, 2025

      recommand products