Nolan X-lite X-901 Instrucciones De Utilizacion página 33

3.4 - Top ventilation system assembly
3.4.1 - Insert and secure the top ventilation system on the helmet.
Check that the flap slides under the air tunnel guides and in the
rear port seat. Insert the rear port pawl into its special slot. Push
down the port until you hear it click in. Check that the system works
correctly by repeating the opening operations (points 3.2.2 and
3.2.3).
Low Deflector
It optimises the
aerodynamics of the helmet
chin portion, by reducing turbulence
and noise in the chin area.
Removable wind shield and breath deflector
These accessories enable to improve the helmet performance under
special conditions.
The wind shield (Wind Protector) prevents annoying air infiltration
from the chin area (see special leaflet attached).
The Breath Deflector prevents the visor misting by diverting breath
downwards (see special leaflet attached).
WARNING! The wind shield and breath deflector are easily
removable.
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