Alpinestars - Supertech M5 Helmet - ACT K-Type-Clutches which provide plenty of storage

which provide plenty of storage space for your essentials

Flex Core spring permits filter to bend for easier installation and to move during operation to help shake off dirt build-up

retaining nut and gasket

Molded air spoiler reduces drag and lift as well as diminishes pressure on the rider's neck while riding at speed

**This replacement battery is sold as an individual unit

Alpinestars - Supertech M5 Helmet - ACT K-Type-Clutches which provide plenty of storageThe all new SM5 helmet is the result of more than five years of intensive study, development and testing. We scrutinized every possible aspect to engineer a helmet that is safe and thoughtfully designed to deliver optimal protection and comfort. This lightweight helmet features a thermo injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact