10 Best Aero Bars For Road Bike 2025 in the United States

The Sonic/Ergo/52a aero bar from Profile Design is a versatile upgrade for road cyclists looking to improve their riding posture and aerodynamics. It features Sonic brackets paired with Ergo armrests padded with 10mm Ergo pads, which offer a comfortable resting position for your arms during long rides. The bars are highly adjustable, with width options ranging from 124mm to 290mm in small steps, allowing a good fit for different body types and riding styles. The 400mm extension length and 52-degree grip angle help customize hand positioning, enhancing comfort and control.

Weighing in at 564 grams (excluding packaging), these aero bars are relatively light for aluminum construction, making them suitable if you want to keep your bike's weight down. Compatibility is broad since it fits on 31.8mm handlebars (with shims for 26.0mm), so most modern road bikes should work well with it.

While the armrest pads provide comfort, they are only 10mm thick, which might feel less cushioned if you prefer softer support on longer rides. The included hardware and a two-year warranty add peace of mind. The Sonic/Ergo/52a aero bar represents a solid choice for road cyclists wanting adjustable, comfortable aero bars that fit a wide range of handlebar sizes and help improve aerodynamic position without adding much weight.

The Zipp Speed Weaponry Vuka Aerobar Extensions - Evo 110 are designed for triathlon or road bikes, focusing on aerodynamic positioning. Made from carbon, these bars are lightweight and strong, which is great for riders looking to reduce weight without losing durability. They feature an adjustable width, allowing you to customize the fit to your comfort and riding style. The Evo 110 model offers a longer reach (110mm drop), which suits riders who prefer a more aggressive aero position. Included armrests provide additional support and comfort during long rides, helping you maintain your position with less strain.

Weight-wise, these bars are fairly light thanks to the carbon material, which benefits speed and handling. Compatibility is straightforward as they fit standard 22.2mm diameter handlebars, common on many triathlon and road bikes. The product is aimed more at serious cyclists or triathletes who need precise fit and performance enhancements; casual riders might find the aggressive position less comfortable. Also, the higher drop might not suit everyone, especially those new to aero bars.

If you're looking for a high-quality, adjustable aero bar setup with good armrest support and a lightweight carbon build, the Zipp Vuka Aero Extensions Evo 110 are a solid option, especially for competitive or focused riders.

The VISION Trimax Carbon Si 013 Aerobar is designed specifically for triathlon and time trial bikes, featuring a JS-bend style handlebar which offers a comfortable ergonomic position suited for aerodynamic riding. Made from carbon, it keeps the weight low, which is ideal for riders wanting to minimize bike weight without sacrificing stiffness.

Adjustability is a key strength here, as the bars can be fine-tuned to fit individual arm positions and preferences, helping improve comfort during long rides. The armrests provide good support, although they may not have extensive padding compared to some more expensive models, so comfort may vary based on personal preference. Compatibility-wise, it fits standard 31.8mm clamp sizes, making it easy to attach to most road bike setups.

This model has been available since 2009, so it might not include some features found in newer aero bars. Nevertheless, its solid construction and carbon material make it a reliable choice for triathletes seeking a lightweight and adjustable aero bar setup without a steep learning curve.