The all-new for 2018-A2 helmet redefines mountain bike safety, style, comfort and ventilation. The first helmet in its class to combine EPP (for slow speed impacts) and EPS (for high speed impacts) in one sleek package, that will set a new benchmark for mountain bike helmets.
Huge air intakes- 25% larger than A1, connected to massive exhaust ports for cooling efficiency
Mips brain protection system reduces rotational forces
Dual density EPS co-molded with EPP for impact energy management
Rear Stabilizer fit system for custom fit
Aerospace filament reinforced polycarbonate shell
16% more EPS+EPP in the frontal lobe
Extra Large/XX Large
Head Circumference (in)
Head Circumference (cm)
7 1/8-7 3/8
How to Measure To find your perfect fit, measure the circumference of your head just above your ears and eyebrows using a cloth tape measure or a piece of string and a ruler. Use the chart above to determine the proper helmet size for you.
Fits very securely. Goes down the back of my head pretty far, to protect it. Strap adjustment is waaaaaay simpler than the Giro stuff I have been riding for the last 40 years. Hoping NOT to try out the MIPS, but glad to have it.
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