Specialized Propero 4 Helmet Size:M Fast rolling tyre for hard

Fast rolling tyre for hard & dry conditions

the Factor HANZŌ proves otherwise

polyester fabric that is both moisture-wicking

The Factor O2 VAM is what happens when you stop choosing between light and fast — and demand both

Armrest: Ergo/10mm pads

Specialized Propero 4 Helmet Size:M Fast rolling tyre for hardMeet 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