Troy Lee Designs D4 MIPS Stealth BMX Race Helmet-Gray Helmet Size:Adult Small CRANK REQUIREMENT: Any crank with

CRANK REQUIREMENT: Any crank with 4-Bolt spider or that can be adapted with a 4-bolt spider

Use: Intermediate Jump

Axle Width: 110mm

25 Thread - 6mm Allen Slot

HUB: Sealed Alloy

Troy Lee Designs D4 MIPS Stealth BMX Race Helmet-Gray Helmet Size:Adult Small CRANK REQUIREMENT: Any crank withThe Troy Lee Designs D4 Composite MIPS Stealth Helmet Gray weighs a little over 1 kilogram making it one of the lightest helmets in the game. 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 shoulder