Helmets with Micrometric Fasteners
Micrometric fasteners (sometimes called micro ratchet fasteners) are probably the most popular way to fasten a modern crash helmet. They’re easy to tighten up and, importantly, very easy to loosen. For more detailed information about micrometric fasteners, read here.
If you’re looking to buy a new helmet and want one with a micrometric fastener, then you might want to check out these helmets – because they’ve all got one.