ALPINESTARS SM3 Radium Helmet GRAY/BLK/YL 2025 Model honda-cb-1000-r-abs-2019-esi6796973 Radial versions with revised pattern

Radial versions with revised pattern design to obtain optimum casing rigidity and footprint

the same material we use for the realization of the screens dedicated to the MotoGP and Superbike world championships

5 cm (17-1/2")

For moderately aggressive every day and sport street riding

Low section profile and stiff carcass ensure good stability when cornering

ALPINESTARS SM3 Radium Helmet GRAY/BLK/YL 2025 Model honda-cb-1000-r-abs-2019-esi6796973 Radial versions with revised patternThe S M3 Helmet is engineered for MX, Enduro and Off road use featuring innovations and technologies optimized for ease of use, comfort and impact performance. Shell construction featuring a thermo injected shell incorporating a special polymer blend enhanced by varying degrees of thickness, engineered to deliver optimal combination of impact protection and light weight. Alpinestars patented innovative low friction coating is applied to inner part of