Project MX

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Alpinestars S-M3 Radium Helmet Black Red Fluo White Glossy

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Race-ready protection in a striking red fluo finish. The Alpinestars S-M3 Radium features a thermo-injected polymer shell at 1430g with patented low-friction coating on the EPS liner to reduce rotational acceleration from oblique impacts. The visor is designed to release at a controlled force to minimise neck loading during a crash. 

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Alpinestars Alpinestars S-M3 Radium Helmet Black Red Fluo White Glossy Alpinestars Alpinestars S-M3 Radium Helmet Black Red Fluo White Glossy Alpinestars Alpinestars S-M3 Radium Helmet Black Red Fluo White Glossy Alpinestars Alpinestars S-M3 Radium Helmet Black Red Fluo White Glossy Alpinestars Alpinestars S-M3 Radium Helmet Black Red Fluo White Glossy Alpinestars Alpinestars S-M3 Radium Helmet Black Red Fluo White Glossy Alpinestars Alpinestars S-M3 Radium Helmet Black Red Fluo White Glossy

£189.99 £199.99

(you save 5% or £10.00)

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Alpinestars S-M3 Radium Helmet Black Red Fluo White Glossy product information

Motocross Helmet. Thermo-injected shell, engineered to deliver the optimal impact protection. Maximised ventilation, integrated hydration tube channels, patented visor release system. Emergency Release System. Stainless steel D-ring strap. ECE 22.06 Certified.

Thermo-injected shell incorporating a special polymer blend

10 inlets and 7 exhaust ports

Alpinestars' patented low-friction coating

Alpinestars' patented visor release system

5 EPS inner parts with 4 densities

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