{"product_id":"specialized-propero-4-helmet-black-s","title":"Specialized Propero 4 Helmet Black S","description":"\u003cp\u003eMeet 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.\u003c\/p\u003e\u003cp\u003eAERODYNAMICS: 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.\u003c\/p\u003e\u003cp\u003eVENTILATION: 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.\u003c\/p\u003e\u003cp\u003eATTENTION 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.\u003c\/p\u003e  \u003cli\u003eAdjustable Tri-Fix web system for added comfort \u003c\/li\u003e\u003cli\u003eFS3 Fit System \u0026amp; Occipital Base Adjustment optimizes comfort by personalizing fit to individual head shape, and helmet angle can be adjusted for compatibility with glasses\u003c\/li\u003e\u003cli\u003eMicro Channeling \u0026amp; large rear-end vents for increased ventilation\u003c\/li\u003e\u003cli\u003eMips C-Solution\u003c\/li\u003e\u003cli\u003ePrecision, full-wrap polycarbonate shell for increased durability and premium finish\u003c\/li\u003e\u003cli\u003ePropero 4 earned the highest 5-Star Virginia Tech® Helmet Rating™ from internationally renowned Virginia Polytechnic Institute and State University.\u003c\/li\u003e\u003cli\u003eS-Works Evade 3 front-end design language for enhanced Aerodynamics\u003c\/li\u003e\u003cli\u003eSunglass storage\u003c\/li\u003e\u003cli\u003eThin 10mm webbing for increased comfort\u003c\/li\u003e","brand":"Specialized","offers":[{"title":"Default Title","offer_id":40718332002359,"sku":"60124-0702","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2046\/files\/60124-170_HLMT_PROPERO-4-HLMT-CE-BLK-M_HERO.jpg?v=1723670271","url":"https:\/\/www.probikesupply.com\/products\/specialized-propero-4-helmet-black-s","provider":"Pro Bike Supply","version":"1.0","type":"link"}