Specialized Propero 4 Helmet

Specialized Propero 4 Road Helmet in Blue. Specialized Reference: 60125-1723

Meet the new Propero 4 helmet - it brings the aerodynamic advantages of the S-Works Evade 3 along with the ventilation of the S-Works Prevail 3, all with the comfort and confidence that Specialized helmets are famous for, earning the highest 5-star rating from Virginia Tech®. Every detail of the Propero 4 was created with our speed equation in mind. Aerodynamics + Ventilation + Lightness = Speed.

AERODYNAMICS: With extensive testing in CFD and in our Win Tunnel, aerodynamics were at the forefront of the development of the Propero 4. We took the cutting edge aerodynamics of the helmet to create a faster helmet. We took the aerodynamic front end of the S-Works Evade 3 and molded it directly onto the Propero 4, which contributed to it being four watts, or 15 seconds over 40km, faster than our S-Works Prevail 3.

VENTILATION: Taking inspiration from our world-renowned S-Works Prevail 3, our goal was not to simply replicate it, but to take it one step further. Ventilation became a central focus in our quest for a well-balanced, aerodynamic, and ventilated helmet. We incorporated the rear of the Prevail 3 and introduced small, 2mm offset microchannels that create turbulence in the airflow throughout the helmet to help create a continuous, cooling airflow.

Ventilation became the focal point of our quest for a well-balanced, aerodynamic, and ventilated helmet.

• Mips C-Solution
• The Propero 4 earned the top 5-Star Virginia Tech® Helmet Rating™ from the internationally recognized Virginia Polytechnic Institute and State University.
• The FS3 fit system and occipital base adjustment optimize comfort by customizing the fit to the individual head shape, and the helmet angle can be adjusted to be compatible with eyewear.
• Adjustable Tri-Fix strap system for added comfort
• Fit for glasses
• 10mm thin straps for comfort
• Microchannels and large rear vents for increased ventilation
• Precision, full-wrap polycarbonate shell for increased durability and premium finish.
• Full polycarbonate shell for increased durability and a premium finish