The perfect balance between speed and comfort

With the Specialized ProperA 4 bike helmet, you choose a superior riding experience. This helmet offers the ideal combination of aerodynamics, ventilation, and lightweight design. It is perfect for both the enthusiastic amateur and the seasoned professional cyclist.

Advanced technology from the S-Works line

The ProperA 4 is inspired by the top models of Specialized's S-Works line. The technology, previously only available to the absolute top, is now within reach of every cyclist. This means you can enjoy the innovation and speed that this legendary line offers.

Incredible aerodynamics

Aerodynamics make the difference. Thanks to the use of CFD test methods and development in the Win Tunnel, the ProperA 4 is up to four watts faster than its predecessor, the S-Works Prevail 3. This results in a time gain of 15 seconds over a distance of 40 km at 45 km/h. Ideal for those who want to get the most out of every pedal stroke.

Innovative ventilation with Micro Channeling

Thanks to groundbreaking Micro Channeling technology, the ProperA 4 ensures continuous airflow through small, 2mm offset channels. This technique works like a tumble dryer, drawing in cool air and expelling warm air. This provides a fresh and comfortable riding experience, regardless of weather conditions.

Speed meets style

In addition to its high performance, the ProperA 4 has a sleek and modern design. This helmet is available in a stylish white finish, providing the perfect accent to your cycling outfit.

Accessible to every cyclist

Whether you're a new cyclist or want to beat the competition, the Specialized ProperA 4 makes high-quality technology accessible. With this helmet, you're ready for any challenge.

• Designed with S-Works technology
• Improves aerodynamics for increased speed
• Micro Channeling for constant ventilation
• Lightweight and stylish design