Specialized Propero 4 Helmet Color:White impact resistant edge to edge

impact resistant edge to edge cover and protective lining

More protection and coverage than you'd get from a trail helmet

Friction ring width: 15

Its optimized tread design and reduced knob height cut weight by 55g and improve rolling resistance by 5%

Available in Wide Trail (WT) Casing: Optimized for modern rims (30–35mm internal width)

Specialized Propero 4 Helmet Color:White impact resistant edge to edgeMeet the all new Propero 4 helmetit 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