For those of you who only have two speeds: fast and faster, you'll be delighted to know that Giro has a race-specific MTB helmet. The Giro Athlon mountain bike helmet has all the features that racers crave, like a nice, compact shape, 23 Wind Tunnel vents, low-profile P.O.V. visor and the all-new Roc Loc 5 retention system to maximize your comfort and performance.
In-Mold construction reinforces the area around the vents and ribs, creating a one-piece exoskeleton, which allows the helmet to be lighter, more durable and better ventilated than traditional designs
Roll Cage is a light-yet-tough web of reinforcement, invisibility molded inside the helmet's EPS foam liner for maximum impact protection, strength and integrity
23 Wind Tunnel vents with internal channels thrust cool, fresh air over and around your head while forcing heat and stale air out
P.O.V. adjustable and removable visor protects your eyes from the sun, rain and other debris
Quite possibly the best-fitting retention system you've ever experienced, the Roc Loc 5 easily adjusts both fit tension and vertical position with a single hand, plus it's 40% lighter than its popular predecessor, Roc Loc 4
Giro Athlon Mountain Helmet - Closeout
Roc Loc 5
Small 20-21.75", Medium 21.75-23.25", Large 23.25-24.75"