Why Motorcycle Helmets Use this Ancient Buckle
Aug 8, 2021 — Watch Now | Ever wonder why motorbike helmets use double D-rings instead of ordinary buckles? We did. Turns out there's a catastrophically good reason!

Trick question: What's the first skill a motorcyclist learns? Through two rings, and back through one: that's how motorcycle helmets stay on — with a friction knot technology as old as rubbing sticks together. Surely, we should have advanced since then?
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