Why Semi-Trucks Have Spikes on Their Wheels (It's Not What You Think)
Those sharp metal spikes on semi-truck wheels may look intimidating, but they aren't weapons. In most cases, they're decorative lug nut covers that also help protect wheel hardware from dirt, moisture, and corrosion while making inspections easier. So why do semi-trucks have spikes on their wheels? 00:00 - INTRO 00:33 - PART 1. WHY SEMI-TRUCKS HAVE SPIKES ON THEIR WHEELS 03:42 - PART 2. WHY ARE THERE BRUSHES ON ESCALATORS? 07:06 - OUTRO #semitruck #wheels #truck
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