Troy Lee Designs D4 Carbon MIPS BMX Race Helmet-Inferno Gray Helmet Size:Adult X-Small Fits wheel sizes 20"-29" and

Fits wheel sizes 20"-29" and is not compatible with plus or fat tire wheels

TLD added EPS foam and redesigned the head-form shape for even better protection from impact

These bolts are also compatible with Madera 3/8" hubs

Upsweep: 3 degree

Available in multiple patterns and colorways

Troy Lee Designs D4 Carbon MIPS BMX Race Helmet-Inferno Gray Helmet Size:Adult X-Small Fits wheel sizes 20"-29" andThe 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