Profile Design Sonic Ergo 39a Aerobar Handlebar
Precision Aerobar Setup for Speed & Comfort
Profile Design Sonic Ergo 39a Aerobar Handlebar is backordered and will ship as soon as it is back in stock.
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Profile Design Sonic Ergo 39a Aerobar Handlebar is backordered and will ship as soon as it is back in stock.
The Profile Design Sonic Ergo 39A Aerobar Handlebar is built to help riders achieve a faster and more efficient position without sacrificing comfort. By combining the streamlined Sonic bracket with the supportive Ergo armrest, it creates a setup that enhances both aerodynamics and ride stability.
Minimal Drag, Maximum Performance: The Sonic/Ergo system is engineered to minimize frontal area, reducing aerodynamic drag and helping you maintain higher speeds with less effort. Despite its clean, minimalist look, it offers an impressive fit range that lets riders dial in the ideal aerodynamic posture for their style and goals.
Customizable Positioning for Every Rider: The 39A extensions feature a 39° grip angle that allows both high hand positions for a compact, shrugged profile or lower hand positions for a more open, head-up posture. Extension length and rotation can be quickly adjusted, giving you complete control over fine-tuning your reach and handling.
Unmatched Adjustability in a Clip-On Aerobar: With 100 armrest positions and up to 1500 possible configurations when paired with risers, these aerobars offer more adjustability than any clip-on bar ever made. You can easily modify tilt, width, height and extension placement, ensuring a perfectly tailored fit whether you're racing, training, or adapting from a previous setup.
Lightweight, Smartly Engineered Construction: Developed after the introduction of the Supersonic (J5) bracket, the Sonic bracket simplifies the clamp design and shifts the wing forward for better balance and reduced weight. As the lightest bracket in the lineup, it offers impressive strength and stability while keeping your cockpit lean and responsive.
The Ergo armrests feature a flippable design that allows subtle adjustments by swapping sides or rotating their orientation. This helps you achieve micro-level fit refinement or perfectly match the position from your earlier aerobar or bike setup, making transitions smoother and more accurate.
Product details
Specifications
Specifications
| Bracket | Sonic |
|---|---|
| Clamp Diameter | 31.8mm (26.0 with Shim Kit - Shim Kit is sold separately) |
| Armrest | Ergo / 10mm Pads |
| Armrest Width | 124 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 | 400 mm |
| Extension Angle | 39° |
| 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 | 564 g |
| Bar Clamp | 6Nm (53 inlbf) |
| Extension Clamp | 6Nm (53 inlbf) |
| Armrest Bolts | 4.7Nm (42 inlbf) |
| Weight||Bracket | 234 g |
| Weight|Armrest | 130 g |
| Weight|Extensions | 222 g/Pair |
| Weight|Total | 586 g |
Features
Features
Warranty and support
Warranty and support
Covered by the manufacturer's warranty. Warranty claims go through us and we deal with the brand for you.
Questions after delivery? Ask TBA Guide or WhatsApp us.
Shipping and returns
Shipping and returns
We ship across India. Shipping is free on orders above ₹2,000 and ₹99 below that. Cash on delivery is available on orders up to ₹20,000, with a COD charge that depends on the order value. For a delivery estimate, enter your pincode in the box above the add-to-cart button: it shows the courier's own estimate for your address, not a promised date. If a parcel is held up we chase the courier until it is delivered. Full shipping policy
Returns can be started within 7 days of delivery on unused items in their original condition with all tags and packaging. Apparel, helmets, gloves and similar items are returnable; wetsuits and products discounted by more than 5% are not. Compatibility questions are not grounds for a return unless our listing was wrong, so ask us before you order if you are unsure. Return shipping is arranged by you; on an accepted return you can choose an exchange, store credit or a refund after shipping and transaction charges. Orders can be cancelled only until they are processed. Full return and refund policy





