Specialized Propero 4 MIPS Helmet

Specialized Propero 4 MIPS Road Helmet in Glacial. Specialized Reference: 60125-1713

Meet the new Propero 4 helmet - it brings the aerodynamic advantages of the S-Works Evade 3 together 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 aerodynamic cutting edge of the helmet to create a faster helmet. We took the aerodynamic front end of the S-Works Evade 3 and molded it directly into the Propero 4, which contributed to it being four watts, or 15 seconds over 40km, faster than our S-Works Prevail 3.

VENTILATION: Inspired by our world-renowned S-Works Prevail 3, our goal was not to simply replicate it, but to take it a step further. Ventilation became a central point 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 central point in our quest for a well-balanced, aerodynamic, and ventilated helmet.

• The Mips Evolve solution is a low-friction layer that allows 10-15mm of gliding motion in all directions. Studies indicate that this reduces some of the rotational forces transmitted to the brain during angled impacts.
• 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 glasses.
• Adjustable Tri-Fix strap system for added comfort
• Glass fit
• 10mm thin straps for added comfort
• Microchannels and large rear vents for increased ventilation