Alpinestars S-M5 Corp Visor Motorcycle Helmet AccessoriesAlpinestars S M5 Corp Visor Motorcycle Helmet Accessories The visor has been designed to direct air into the ports for enhanced airflow. Patented visor release system ensures the visor is released with the correct pre determined amount of force, irrespective of the angle of impact.

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these helmets provide excellent impact resistance and ventilation

Eco-Friendly Material: Made from recycled PET bottles

Double chainrings are only supported with GS (medium cage) rear derailleurs

and riding

with integral Boron Nitride compounds

Featuring a slim yet rugged nylon composite body

Durable construction and thoughtful serviceability mean they stand up to hard use and are easy to maintain and tune to your preference

it’s a reliable upgrade that keeps your focus forward

high end finish to the hub assembly

Mounting & Versatility: Includes an all-tube QR mounting bracket and a high-security cable for extra component protection

* 400% range* For use with XPLR 1x rear derailleurs* Compatible with Flattop chains* For 11-speed HG road driver bodies* SRAM Model ID: CS-PG-1231-D1​​