The 4Forty MIPS Helmet is a tough, no-compromise mountain bike helmet. With its MIPS protection system, excellent ventilation and adjustable visor, it is more than ever ready for the trails. Read more.
The MIPS system reduces rotational forces to the brain during angled impacts, delivering the most comprehensive protection possible. The polycarbonate shell is bonded to the EPS foam liner, creating a rugged helmet.
The adjustable visor accommodates both goggles and goggles and the lightweight Float adjustment system allows for easy adjustments.
SIZE GUIDE
S 52-56cm 20 1/2"– 22"
M 55-59cm 21 5/8"– 23 1/4"
L 58-62cm 22 3/4"– 24 3/8"
XL 61-65cm 24"– 25 5/8"
