82 / 84 0.06 m 3 0.041 m 3 5.5 kg 3.7 kg 0.018 m 3 3.9 kg width: 18 cm lenght: 18 cm height: 26 cm width: 27 cm lenght: 12 cm height: 69 cm 0.043 m 3 3.7 kg width: 27 cm lenght: 12 cm height: 71 cm width: 27 cm lenght: 12 cm height: 69 cm winther bike helmet