Specialized Propero 4 Bike Helmet bikepublish Polartec Alfa synthetic insulation

Polartec Alfa synthetic insulation

the ultimate fusion of warmth and versatility for mountain enthusiasts

5) this boot won't slow you down on the up

Kastle's Hollowtech Evo Luminous tip glows in the dark for increased visibility during pre-dawn or late-night training missions

and if you to keep your transitions crazy simple

Specialized Propero 4 Bike Helmet bikepublish Polartec Alfa synthetic insulationMeet the all new Propero 4 helmet. This helmet combines the aero advantages of the S Works Evade 3 with the ventilation of the S Works Prevail 3, all with the comfort and confidence Specialized helmets are famous for. It earned 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