mt biking helmets BATFOX Bike Helmet,Mountain Bike Helmet for Men Women Adults Youth (Army Green, M(52-55CM)) : Sports & Outdoors This adult mountain bike helmet is designed to fit head circumferences of 59 Our Favorite Mountain Bike Helmets

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the DOT certified version of the helmets inner shell is constructed with a composite fiber assembled between the outer shell and the EPS liner for maximum protection against impacts The fit can be tailored to the riders head thanks to the helmets crown and cheek pads, which are available as genuine spare parts in different thicknesses Youth Medium and Youth Large sizes share the same EPS size, which allows riders with an YM size to initially buy an YM helmet and then configure it to a Youth Large size as they grow via the crown and cheek pad spare parts The Youth Small has a smaller EPS size and can be customized only via the cheek pads Alpinestars extensive research has shown that the kids that wear a YS size are very small, typically 3 to 4 years old, and therefore they require a dedicated helmet fit Multiple density inner liner ensures the helmet is equipped with the correct density in the correct area for enhanced impact absorption, while also helping reduce overall weight The inner and outer surfaces are engineered to minimize the effects of oblique impacts Alpinestars patented low friction coating is applied to the inner part of the main EPS liner to reduce the rotational acceleration forces that can result from certain oblique impacts This layer essentially acts as a slip plane to mimic the brains own low friction cerebrospinal fluid, which is the bodys natural defense against oblique impacts Patented visor release system ensures the visor is released with the correct pre-determined amount of force, effectively reducing the forces on the riders neck during an impact Hydration tube channels are integrated into the helmets cheek pads for convenience and performance Alpinestars has introduced a new in-house standard for the SM3 Youth to test the helmets chin to conditions heavier than the homologation standard, and in order to pass the Alpinestars new standards, the shell thickness and the structure of the helmet design itself have both been optimized on the chin area for superior impact performance Equipped with an Emergency Release System and removable cheek pads to permit the safe and easy removal of the cheek pads while the helmet is still on, while the 3D contoured foam ensures rider comfort Soft textile chin strap is 25mm for optimal safety and rider comfort Stainless steel D-rings ensure a tight and secure fit Maximized ventilation and high levels of heat transfer exchange thanks to 10 inlets and seven exhaust ports The visor has been designed to direct air into the ports for enhanced airflow The helmet is 06 homologated - The homologation indicates that a helmet can be used for racing in EU countries (status 2021 homologation: 06) Weight 1.76 kg (S) 1.76 kg (M) 1.75 kg (L) Manufacturer number EAN 8059347446974 (S) EAN 8059347423449 (M) EAN 8059347446981 (L) Fit & size chart chevron_right Ratings (2) chevron_right

With a price point slightly higher than that of the Bell Bullitt and a naming convention that verges on the ridiculous the Glamster may have a hard time convincing some to purchase it

Design: Unisex / Minimal / Casual