{"product_id":"propero-4","title":"Propero 4","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.\u003cbr\u003e\u003cbr\u003eEvery detail of the Propero 4 was created with our equation for speed in mind. Aerodynamics + Ventilation + Lightweight = Fast.\u003cbr\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\u003eFor helmets sold in the U.S. and Canada: Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older.\u003c\/p\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMips 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.\u003c\/li\u003e\n\u003cli\u003ePropero 4 earned the highest 5-Star Virginia Tech® Helmet Rating from internationally renowned Virginia Polytechnic Institute and State University.\u003c\/li\u003e\n\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\n\u003cli\u003eAdjustable Tri-Fix web splitter combined with thin 10mm webbing for increased comfort.\u003c\/li\u003e\n\u003cli\u003eDedicated sunglass storage maintains a secure fit and keeps eyewear out of the way when needed.\u003c\/li\u003e\n\u003cli\u003eMicro Channeling \u0026amp; large rear-end vents for increased ventilation.\u003c\/li\u003e\n\u003cli\u003eS-Works Evade 3 front-end design language for enhanced Aerodynamics.\u003c\/li\u003e\n\u003cli\u003ePrecision, full-wrap polycarbonate shell for increased durability and premium finish.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Specialized","offers":[{"title":"S \/ Glacial","offer_id":47144867463416,"sku":"60125-0712","price":229.99,"currency_code":"USD","in_stock":true},{"title":"S \/ Taupe","offer_id":47144867430648,"sku":"60125-0702","price":229.99,"currency_code":"USD","in_stock":true},{"title":"S \/ White","offer_id":47144867332344,"sku":"60124-0712","price":229.99,"currency_code":"USD","in_stock":true},{"title":"S \/ Powder Indigo","offer_id":48407247880440,"sku":"60124-0742","price":229.99,"currency_code":"USD","in_stock":false},{"title":"S \/ Black","offer_id":47144867365112,"sku":"60124-0702","price":229.99,"currency_code":"USD","in_stock":true},{"title":"S \/ Hyper Dove Grey","offer_id":47144867397880,"sku":"60124-0732","price":229.99,"currency_code":"USD","in_stock":true},{"title":"S \/ Deep Marine Metallic","offer_id":48407247847672,"sku":"60124-0722","price":229.99,"currency_code":"USD","in_stock":false},{"title":"S \/ Dove Pink","offer_id":48407247814904,"sku":"60126-0722","price":229.99,"currency_code":"USD","in_stock":false},{"title":"S \/ Sandstone Metallic","offer_id":48393841410296,"sku":"60126-0702","price":229.99,"currency_code":"USD","in_stock":true},{"title":"M \/ Powder Indigo","offer_id":48407247945976,"sku":"60124-0743","price":229.99,"currency_code":"USD","in_stock":false},{"title":"M \/ White","offer_id":47144867496184,"sku":"60124-0713","price":229.99,"currency_code":"USD","in_stock":true},{"title":"M \/ Deep Marine Metallic","offer_id":48407247913208,"sku":"60124-0723","price":229.99,"currency_code":"USD","in_stock":false},{"title":"M \/ Black","offer_id":47144867561720,"sku":"60124-0703","price":229.99,"currency_code":"USD","in_stock":true},{"title":"M \/ Taupe","offer_id":47144867594488,"sku":"60125-0703","price":229.99,"currency_code":"USD","in_stock":true},{"title":"M \/ Hyper Dove Grey","offer_id":47144867627256,"sku":"60124-0733","price":229.99,"currency_code":"USD","in_stock":true},{"title":"M \/ Dove Pink","offer_id":48407247978744,"sku":"60126-0723","price":229.99,"currency_code":"USD","in_stock":false},{"title":"M \/ Sandstone Metallic","offer_id":48393841443064,"sku":"60126-0703","price":229.99,"currency_code":"USD","in_stock":true},{"title":"M \/ Glacial","offer_id":47144867528952,"sku":"60125-0713","price":229.99,"currency_code":"USD","in_stock":true},{"title":"L \/ Deep Marine Metallic","offer_id":48407248011512,"sku":"60124-0724","price":229.99,"currency_code":"USD","in_stock":false},{"title":"L \/ Glacial","offer_id":47144867692792,"sku":"60125-0714","price":229.99,"currency_code":"USD","in_stock":true},{"title":"L \/ Sandstone Metallic","offer_id":48393841475832,"sku":"60126-0704","price":229.99,"currency_code":"USD","in_stock":true},{"title":"L \/ Powder Indigo","offer_id":48407248044280,"sku":"60124-0744","price":229.99,"currency_code":"USD","in_stock":false},{"title":"L \/ Hyper Dove Grey","offer_id":47144867725560,"sku":"60124-0734","price":229.99,"currency_code":"USD","in_stock":true},{"title":"L \/ White","offer_id":47144867791096,"sku":"60124-0714","price":229.99,"currency_code":"USD","in_stock":true},{"title":"L \/ Dove Pink","offer_id":48407248077048,"sku":"60126-0724","price":229.99,"currency_code":"USD","in_stock":true},{"title":"L \/ Black","offer_id":47144867660024,"sku":"60124-0704","price":229.99,"currency_code":"USD","in_stock":true},{"title":"L \/ Taupe","offer_id":47144867758328,"sku":"60125-0704","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0357\/3930\/4074\/files\/60124-172_HLMT_PROPERO-4-HLMT-CE-DEEPMARN-M_HERO_e33d875b-4129-42ff-a8d5-355b1b4db450.jpg?v=1779423560","url":"https:\/\/shopbikesupply.com\/products\/propero-4","provider":"Sierra Bicycle Supply","version":"1.0","type":"link"}