Troy Lee Designs D4 Polyacrylite MIPS Helmet Linear Black ss23 as well as mounts for

as well as mounts for racks and fenders

The tweaked design allows for quick turns and playful maneuvers

Laser perforated venting to help increase airflow

The ultra-wide

Troy Lee Designs D4 Polyacrylite MIPS Helmet Linear Black ss23 as well as mounts forEngineered for aggressive riding and trusted by elite downhill and BMX athletes, the Troy Lee Designs D4 Polyacrylite MIPS Helmet delivers proven impact protection in a lightweight, cost efficient shell. Mips C2 technology reduces rotational forces during crashes, while the Collarbone Suspension System and breakaway visor screws add critical safety enhancements. Ventilation is optimized through a multi port intake system, and the interior fit is fine