Propero 4 Colour:Dark Navy Metallic and BOA® Fit System featuring

and BOA® Fit System featuring FS1 deliver confidence and comfort on long rides

DS: 283mm NDS: 284mm

Tubes only sealant

and is fully adjustable to fit electric and regular mountain bikes

so we created the Valve Core Remover Tool

Propero 4 Colour:Dark Navy Metallic and BOA® Fit System featuringMeet 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. 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 Tunnel, aerodynamics were at the forefront of the Propero