ALPINESTARS SM3 Helmet - Radium - Matte Gray/Black/Yellow Fluo - 2XL 8300826-9510-XXL (8 7KHz Recommended Lo Pass Crossover

7KHz Recommended Lo Pass Crossover 90 Hz MOTOR Voice Coil Diameter 3” / 76

030 Oversize Ring Set Reference #'s (if available): Can't find what you need

17-0926 Lock and Ring Kit Reference #'s (if available): Can't find what you need

Replacement comfort liner kit for ICON's Airflite™ helmets

ALPINESTARS SM3 Helmet - Radium - Matte Gray/Black/Yellow Fluo - 2XL 8300826-9510-XXL (8 7KHz Recommended Lo Pass CrossoverVaried thickness shell construction for optimized protection and light weight Optimized for MX, Enduro, and Offroad use Delivers blend of performance, protection, and comfort Key Features Features thermo injected shell incorporating a polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight Lightweight outer shell is constructed from impact resistant