---
product_id: 630185357
title: "Sonic/Ergo/52a Aerobar | bike-handlebars"
brand: "profile design"
price: "€ 369.56"
currency: EUR
in_stock: true
reviews_count: 5
category: "Profile Design"
url: https://www.desertcart.fr/products/630185357-sonic-ergo-52a-aerobar-bike-handlebars
store_origin: FR
region: France
---

# Extension: 400mm Width: 124mm-290mm Weight: 564g Sonic/Ergo/52a Aerobar | bike-handlebars

**Brand:** profile design
**Price:** € 369.56
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Elevate Your Ride with Sonic/Ergo/52a!

## Quick Answers

- **What is this?** Sonic/Ergo/52a Aerobar | bike-handlebars by profile design
- **How much does it cost?** € 369.56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/630185357-sonic-ergo-52a-aerobar-bike-handlebars)

## Best For

- profile design enthusiasts

## Why This Product

- Trusted profile design brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Fit:** Adjustable width from 124mm to 290mm in 18.5mm increments.
- • **Durable Design:** Crafted from high-quality aluminum with a 2-year warranty.
- • **Sleek Aesthetics:** Anodized black finish for a stylish, professional look.
- • **Unmatched Comfort:** Ergo armrests with 10mm pads for a luxurious ride.
- • **Lightweight Performance:** Weighing in at just 564g, perfect for competitive cyclists.

## Overview

The Sonic/Ergo/52a Aerobar by Profile Design is the ultimate upgrade for serious cyclists, featuring adjustable width, lightweight construction, and ergonomic armrests for maximum comfort and performance on the road.

## 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 optimising their position for both speed and comfort. The 52A is one of the newest versions of our reliable aluminium extension range.

Review: Satisfecho - Muy fácil de instalar y con muchas opciones de ajustes. Tal vez son un poco largos
Review: Love these - They're adjustable in terms of how far apart they are and how close the handles are to the forearm pads, but if you want them higher off your handlebars, you need to get a riser kit. Good choice for beginner triathletes.

## Features

- Profile Design's replacement for the popular Sonic 50a aerobar!
- Bracket: Sonic
- Armrest: Ergo/10mm pads
- Weight: 564g Coloor: Anodized Black
- Width: 124mm to 290mm in 18. 5mm steps
- Extension length: 400mm
- Grip angle: 52 Degrees

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 17 x 13 x 3.5 inches |
| Package Weight | 0.77 Kilograms |
| Item Dimensions  LxWxH | 23 x 16 x 7 inches |
| Item Weight | 0.9 Pounds |
| Brand Name | Profile Design |
| Warranty Description | 2 year manufacturer |
| Model Name | Sonic/Ergo/52a |
| Color | Black |
| Material | Aluminum |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Manufacturer | Profile Design |
| Part Number | RHSNC521 |
| Included Components | Sonic aerobar brackets (2), AL extensions (2), Ergo armrests (2), 10mm Ergo armrest pads (2), related hardware |
| Size | 31.8mm (26.0 w/shims) |

## Images

![Sonic/Ergo/52a Aerobar | bike-handlebars - Image 1](https://m.media-amazon.com/images/I/51dtroH9YwL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Satisfecho
*by F***Z on May 23, 2026*

Muy fácil de instalar y con muchas opciones de ajustes. Tal vez son un poco largos

### ⭐⭐⭐⭐⭐ Love these
*by E***. on March 2, 2026*

They're adjustable in terms of how far apart they are and how close the handles are to the forearm pads, but if you want them higher off your handlebars, you need to get a riser kit. Good choice for beginner triathletes.

### ⭐⭐⭐⭐⭐ Surprisingly stout
*by T***N on July 9, 2025*

These things and the risers are impressively stout. I put a lot of weight on these and they are holding up great. It was really easy to get a comfortable fit with how adjustable they are too.

## Frequently Bought Together

- Sonic/Ergo/52a Aerobar
- Profile Design Aerobar Bracket Riser Kit Black

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**Shop now:** [https://www.desertcart.fr/products/630185357-sonic-ergo-52a-aerobar-bike-handlebars](https://www.desertcart.fr/products/630185357-sonic-ergo-52a-aerobar-bike-handlebars)

---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-06-19*