Troy Lee Designs D4 Carbon MIPS BMX Race Helmet-Inferno Gray Helmet Size:Adult X-Small Precision fit

Precision fit

Large rear stretch panel insert provides increased comfort and flexibility to the waist and lower back

Includes 12 wrenches in a 12-point box/open-end combination from 6mm to 17mm

Engagement System: Stealth Technology™

Researched and developed to optimize ventilation

Troy Lee Designs D4 Carbon MIPS BMX Race Helmet-Inferno Gray Helmet Size:Adult X-Small Precision fitThe Troy Lee Designs D4 Carbon MIPS BMX Race Helmet weighs in at just about 1 kilogram making it one of the lightest helmets in the game. The D4 incorporates the MIPS brain protection system to help prevent rotational stress resulting from angled impacts. Instead of steel, the D rings are titanium to get just that little extra bit of weight saving. The EPP collarbone impact system is a specially designed area to help mitigate helmet collarbone