Profile Design 39a Aero Bar Extensions 400 mm

When it comes to getting the most out of your watts and improving your position on the bike, Profile Design is a brand that is chosen time and time again by ambitious triathletes and tempo enthusiasts alike. The brand is known for their focus on aerodynamics, comfort and adjustability – three factors that can be crucial to how quickly and efficiently you move forward on the bike.

Profile Design sets itself apart by developing gear that takes into account the fact that every rider is different. Whether you're looking for an aggressive setup for short time trials or you need a more comfortable position for a long Ironman distance, Profile Design typically has a solution that can be customized to your needs. Their focus is not just on making aero components, but on creating a connection between position, comfort and performance.

With products from Profile Design, you have the opportunity to fine-tune your bike so you sit more efficiently, cut through the wind better and make the most of your power. For many riders and triathletes, this means real improvements in both speed and endurance – and ultimately better results.

One of Profile Design's greatest strengths is their modular and flexible approach to bike setup. Many of their components can be adjusted both horizontally and vertically, allowing you to find the exact position that suits your anatomy and preferences. Whether you're upgrading a road bike to a more aerodynamic setup or building a tri-bike from scratch, Profile Design gives you the tools to do it right.

Their solutions are also designed for quick installation, easy adjustment and long-lasting durability – ideal for riders who travel frequently to races, change setups with the season, or just want to tinker with marginal gains. Profile Design makes it easy to adapt to different competitions and distances without compromising performance.

What characterizes the brand is precisely that balance between performance and ease of use. They have an eye for detail, but without making it complicated. Their products work together and are typically compatible with a wide range of frame types and handlebar standards. This makes Profile Design an obvious choice for both the experienced triathlete and the dedicated exerciser.

Profile Design has long been a favorite among triathletes and time trial riders – and for good reason. Their products are developed with a specific focus on the needs of these disciplines: aerodynamics, weight savings, comfort and integration. When you’re riding in an aero position for hours at a time, everything has to work – and it typically does when you choose components from a brand that specializes in it.

The brand offers equipment that suits both beginners and elite athletes, meaning you always have the option to upgrade, expand or fine-tune your setup as your goals and level change. It’s no wonder that Profile Design is seen in transition zones all over the world – from small local events to the world’s largest Ironman events.

In short: Profile Design is for those who value speed, efficiency and the ability to tailor your bike setup down to the smallest detail. Whether you're chasing seconds in a time trial or looking to maintain your energy for longer periods of aero, this is a brand you can confidently build your bike around.