Cairbull Smartrace road bike smart helmet All Road Smart Helmet

Weight: 300g
Material: PC shell, internal high-density EPS, one-piece shock-absorbing impact size: adjustable from 54-61cm head circumference safety certification: CE EN 1078 CPSC 1203
Ventilation holes: 23
USB charging, smart turn signals, warning lights, parking lights

Weight: 300g
Material: PC Outer Shell, EPS Foam, Thermoformed reinforcement shock absorbing polystyrene
Size: Adjustable 54-61cm
Safety Standards: CE EN 1078 CPSC 1203
Ventilation: 23 wind tunnel vents
USB Charging, Turning signal, Caution and Stop signal