Acoustic Damping; Front Vent; Top Vent; Winter Collar - Crivit DS-MULTIX400 Instructions For Use Manual [Page 18]
Crivit DS-MULTIX400 Manual Online: acoustic damping, Front Vent, Top Vent, Winter Collar, Visor Replacement, Installing The Pinlock ® Lens, Adjusting The Pinlock ® Lens Tension, Selecting The Correct Helmet Size. (Fig. H) The Acoustic Damping (13) Is For Noise Reduction, In Particular
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