The Troy Lee Designs D4 Polyacrylite MIPS BMX Race Helmet-The Line Fire/White delivers top-tier protection in a lightweight, budget-friendly shell. With the same safety and comfort features as its high-end counterparts, this helmet includes Mips® C2 brain protection and an advanced ventilation system for airflow during intense rides. Its precision fit, impact-absorbing design, and emergency-ready cheek pads make it a trusted choice for serious racers.
FEATURES
Mips® C2 Rotational Impact Brain Protection System
20 high-flow intake and exhaust ports for maximum ventilation
Added EPS and new headform shape for improved impact performance
Full incremental sizing for greater range of fitment
Strategically placed interior chinbar shock pads for comfort and durability
Quick-release and contoured 3D cheek pads for emergency helmet removal
Purpose-built internal cavities for audio integration
Stainless steel chinstrap D-rings are light and strong
Includes TLD drawstring helmet sock
Exceeds bicycle certifications: CPSC 1203, CE EN 1078:2002+A1:2012 ASTM F1952-15, ASTM F2032-15, ASTM F2040-11
