Maximum coverage open face mountain bike helmet

The Dropframe Pro Helmet is a game-changing, open-faced 3/4 enduro helmet. It features Mips, the BOA® Fit System for class-leading fit and security, increased ventilation, plus an Ionic+® anti-microbial liner and cheek pads to optimize fit. With its increased coverage for the ears, jaw, and back of the head, this MTB helmet provides the most complete coverage we offer in an open-face helmet.

Specs:

BOA® Fit System for class-leading fit and security
Mips added protection system has been proven to reduce the rotational motion when implemented in a helmet by absorbing and redirecting energies and forces otherwise transmitted to the brain
3-position adjustable visor compatible with goggles
Removable under visor GoPro mount included
Big Bore front vents include eyewear storage recess
Increased ventilation and decreased surface contact area improve cooling
Ionic+® anti-microbial liner and cheek pads to optimize fit
FIDLOCK magnetic closure
Meets the NTA-8776 E-bike helmet certification standard

Size	Head Size	Cheek Pads	Hat Size	Weight
S	20.1-21.7"	15 mm (included), 20 mm (installed), 25 mm (included)	6 3/8-6 7/8"	620±30 g
M	21.7-23.2"	15 mm (included), 20 mm (installed), 25 mm (included)	6 7/8-7 3/8"	630±30 g
L	23.2-24.8"	15 mm (included), 20 mm (installed), 25 mm (included)	7 3/8-7 7/8"	700±30 g

Size	Head Size	Cheek Pads	Hat Size	Weight
S	51-55 cm	15 mm (included), 20 mm (installed), 25 mm (included)	16.2-17.5 cm	620±30 g
M	55-59 cm	15 mm (included), 20 mm (installed), 25 mm (included)	17.5-18.8 cm	630±30 g
L	59-63 cm	15 mm (included), 20 mm (installed), 25 mm (included)	18.8-20.1 cm	700±30 g

Safety Gear / Lights

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