Specialized Propero 4 MIPS Helmet

Meet the all-new Propero 4 helmet—it brings the aero advantages of the S-Works Evade 3 together with the ventilation of S-Works Prevail 3, all with the comfort and confidence Specialized helmets are famous for, earning the highest 5-Star Virginia Tech® helmet rating. Every detail of the Propero 4 was created with our equation for speed in mind. Aerodynamics + Ventilation + Lightweight = Fast.

AERODYNAMICS: With extensive testing in CFD and in our Win Tunnel, aerodynamics were at the forefront of the Propero 4 development. We took the aerodynamic leading edge from the S-Works Evade 3 and pulled it directly into the Propero 4—which helped it to be four watts, or 15 seconds over 40km, faster than our S-Works Prevail 3.

VENTILATION: Drawing inspiration from our world-renowned S-Works Prevail 3, our goal was not merely to replicate but to elevate. Ventilation became a focal point in our quest for a well-balanced, aerodynamic, and ventilated helmet. We incorporated the rear-end design language of the S-Works Prevail 3 and introduced small 2mm offset micro-channels that create turbulence in the airflow throughout the helmet to help create a continuous, refreshing flow of air.

ATTENTION TO DETAIL: Beyond just aerodynamics and ventilation, the Propero 4 represents meticulous attention to detail. We went the extra mile by incorporating cutting-edge technologies from our S-Works level helmets, like MIPS technology for confidence, and a fit system designed to deliver all-day comfort. The Propero 4 doesn't just meet expectations, it redefines them.

• Mips Evolve Solution is a low-friction layer that allows a sliding motion of 10 to 15mm in all directions. Studies indicate that this reduces some of the rotational forces transmitted to the brain during angled impacts.
• Propero 4 earned the highest 5-Star Virginia Tech® Helmet Rating from internationally renowned Virginia Polytechnic Institute and State University.
• FS3 Fit System & Occipital Base Adjustment optimizes comfort by personalizing fit to individual head shape, and helmet angle can be adjusted for compatibility with glasses.
• Adjustable Tri-Fix web splitter combined with thin 10mm webbing for increased comfort.
• Dedicated sunglass storage maintains a secure fit and keeps eyewear out of the way when needed.
• Micro Channeling & large rear-end vents for increased ventilation.
• S-Works Evade 3 front-end design language for enhanced Aerodynamics.
• Precision, full-wrap polycarbonate shell for increased durability and premium finish.

Extras: Hand wax $30. Base Weld & Epox Repair billed at 1/4 hour $25. Our hourly rate is $100.

See the Montana tuner in action:

Looking or Bike Service as well, head over to our Bike service options.

1. Can I pick this item up at the Philbrick’s store?
Yes. All products can be ordered online and picked up at our Dover, NH store. Choose Local Pickup during checkout and we’ll notify you when your order is ready.

2. Do you assemble bikes purchased online?
Yes. Bikes purchased through Philbrick’s can be professionally assembled by our in-store technicians so they’re ready to ride when you pick them up.

3. Can I get help choosing the right size or model?
Absolutely. Our staff are experienced riders and can help you choose the correct size, fit, and model. Feel free to call or stop by the store for personalized guidance.

4. Do you offer bike fitting services?
Yes. We offer professional bike fitting services to help ensure comfort, performance, and injury prevention.

5. Can you service equipment purchased from your website?
Yes. Our service department can tune, repair, and maintain bikes and gear purchased from Philbrick’s.

6. How long does local pickup take?
Most orders are ready within 1–2 business days, depending on assembly or service requirements. We’ll email you as soon as your order is ready.

7. Can I return or exchange items at the store?
Yes. Online purchases from Philbrick’s can be returned or exchanged at our Dover, NH location in accordance with our return policy.

8. Do you carry products in the store that aren’t listed online?
No, all products are listed online.

9. Can I speak with someone before placing an order?
Of course. Our team is happy to answer questions about products, sizing, compatibility, or availability before you purchase. Call the store at your convenience. 603-742-9333

10. Where is Philbrick’s located?
Philbrick’s is located in Dover, New Hampshire, serving riders throughout the Seacoast region including Portsmouth, Hampton, and surrounding communities.