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Profile Design Sonic Ergo 52a Aerobar Handlebar

RHSNC521
₹15,990

How To Use

How to Install

  1. Apply assembly compound to clamp and riser surfaces.
  2. Secure the bracket to the handlebar using M6 bolts, tightening to 6Nm.
  3. Cut extensions to desired length, file edges and install shifters.
  4. Position extensions, tighten fixing bolts to 6Nm and attach cable plugs.
  5. Install armrests with M6 bolts, align evenly and press cushions firmly in place.
  6. Check all bolts for correct torque before riding and periodically thereafter.

Highly Adjustable Aero Handlebar for Speed and Comfort

Description

The Profile Design Sonic Ergo 52a Aerobar Handlebar is engineered to deliver both speed and comfort. Its Sonic bracket minimizes frontal area to reduce aerodynamic drag, while offering an extensive fit range and low weight for a performance-focused riding position.

Optimized 52° Grip Angle for Multiple Positions: The 52a extensions feature a 52-degree grip, allowing riders to choose between a high, shrugged position for aerodynamics or a lower, more open position for endurance. This flexibility makes it suitable for both aggressive time trial setups and long-distance comfort.

Limitless Fit Configurations: With 100 armrest positions and the ability to adjust extension length, rotation, width and tilt, the Sonic Ergo offers up to 1,500 possible configurations when combined with risers. This makes it the most adjustable clip-on aerobar in history, giving every rider the ability to find their perfect fit.

Lightweight Yet Highly Functional Design: By simplifying the extension clamp and shifting the wing forward to the bar centerline, Profile Design created their lightest bracket without compromising stability or versatility. The Ergo armrests feature a flippable design, allowing precise micro-adjustments to match previous setups or fine-tune comfort.

With its reliable aluminum extensions and proven ergonomic armrest design, it’s a high-performance upgrade for triathletes and time trialists seeking speed, efficiency and personalized fit.

Features
  • Optimized 52° Grip Angle: Offers both a high, shrugged aero position or a lower, open endurance posture for versatility.
  • Extensive Fit Adjustability: Up to 1,500 configurations with adjustable length, width, tilt and rotation for a personalized fit.
  • Lightweight Sonic Bracket: Minimal frontal area reduces drag while maintaining strength and stability.
  • Ergo Armrests: Flippable design for precise positioning and improved long-distance comfort.
  • Proven Race-Inspired Design: Based on the Supersonic (J5) bracket for elite-level adjustability and performance.

Specifications
  • Bracket: Sonic
  • Clamp Diameter: 31.8mm | 26.0mm with Shim Kit (Sold Separately)
  • Armrest: Ergo / 10mm Pads
  • Armrest Width: 124mm–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: 400 mm
  • Extension Angle: 52°
  • Extension Rise: 87 mm (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

Torque Settings (All Bolts are M6)

  • Bar Clamp: 6Nm (53 in-lbf)
  • Extension Clamp: 6Nm (53 in-lbf)
  • Armrest Bolts: 4.7Nm (42 in-lbf)
  • Weight|Bracket: 234 g
  • Weight|Armrest: 130 g
  • Weight|Extensions: 222 g
  • Weight|Total: 586 g

Shipping Policy

We ship across India with free shipping on orders above ₹2,000 (₹99 for orders below ₹2,000). Cash on Delivery is available up to ₹20,000, with additional COD fees based on order value. Orders typically arrive within 3–6 working days, though delays may occur.

Note: Most Shimano products may take longer to ship. View full shipping policy

Returns & Refunds

Here's a quick overview of our return and refund policy:

  • 7-Day Return Window: You can initiate a return within 7 days of receiving your product.
  • Eligibility: Items must be unused, in original condition, with all tags and packaging. Only select items like apparel (helmets, jerseys, gloves, etc.) are eligible.
  • Non-Returnable Items: Wetsuits and items discounted over 5% are not eligible for returns.
  • Compatibility Issues: Returns are not accepted for compatibility-related issues unless the product description on our website was incorrect. If you're unsure, please contact us before ordering.
  • Shipping & Processing: Return shipping is to be arranged by the customer. No pickups available.
  • Refund Options: Choose between exchange, store credit, or monetary refund (after deductions for shipping and transaction fees).
  • Order Cancellations: Only possible before the order is processed.

For full details, visit our Return & Refund Policy page.

Profile Design Sonic Ergo 52a Aerobar Handlebar | The Bike Affair
Profile Design

Profile Design Sonic Ergo 52a Aerobar Handlebar

₹15,990

Type

Handlebar

Specifications

  • Bracket: Sonic
  • Clamp Diameter: 31.8mm | 26.0mm with Shim Kit (Sold Separately)
  • Armrest: Ergo / 10mm Pads
  • Armrest Width: 124mm–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: 400 mm
  • Extension Angle: 52°
  • Extension Rise: 87 mm (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

Torque Settings (All Bolts are M6)

  • Bar Clamp: 6Nm (53 in-lbf)
  • Extension Clamp: 6Nm (53 in-lbf)
  • Armrest Bolts: 4.7Nm (42 in-lbf)
  • Weight|Bracket: 234 g
  • Weight|Armrest: 130 g
  • Weight|Extensions: 222 g
  • Weight|Total: 586 g

Features

  • Optimized 52° Grip Angle: Offers both a high, shrugged aero position or a lower, open endurance posture for versatility.
  • Extensive Fit Adjustability: Up to 1,500 configurations with adjustable length, width, tilt and rotation for a personalized fit.
  • Lightweight Sonic Bracket: Minimal frontal area reduces drag while maintaining strength and stability.
  • Ergo Armrests: Flippable design for precise positioning and improved long-distance comfort.
  • Proven Race-Inspired Design: Based on the Supersonic (J5) bracket for elite-level adjustability and performance.

The Profile Design Sonic Ergo 52a Aerobar Handlebar is engineered to deliver both speed and comfort. Its Sonic bracket minimizes frontal area to reduce aerodynamic drag, while offering an extensive fit range and low weight for a performance-focused riding position.

Optimized 52° Grip Angle for Multiple Positions: The 52a extensions feature a 52-degree grip, allowing riders to choose between a high, shrugged position for aerodynamics or a lower, more open position for endurance. This flexibility makes it suitable for both aggressive time trial setups and long-distance comfort.

Limitless Fit Configurations: With 100 armrest positions and the ability to adjust extension length, rotation, width and tilt, the Sonic Ergo offers up to 1,500 possible configurations when combined with risers. This makes it the most adjustable clip-on aerobar in history, giving every rider the ability to find their perfect fit.

Lightweight Yet Highly Functional Design: By simplifying the extension clamp and shifting the wing forward to the bar centerline, Profile Design created their lightest bracket without compromising stability or versatility. The Ergo armrests feature a flippable design, allowing precise micro-adjustments to match previous setups or fine-tune comfort.

With its reliable aluminum extensions and proven ergonomic armrest design, it’s a high-performance upgrade for triathletes and time trialists seeking speed, efficiency and personalized fit.

View product