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Speed Vest Clocks MPH For Everyone To See

You know those signs at like airports and road construction sites that read “Your Speed” and give electronic readings of how fast cars are going in an effort to shame people into slowing down? Yeah, they mostly serve to make people speed up in order to jump the readings (dumb sign makers: don’t they know America has no shame. Well now a design and engineering team have constructed a vest that allows bikers to show off how fast they’re going.

Designer Brady Clark and engineer Mykle Hansen put together the speed vest using a wheel speed sensor, a wearable numeric display, and an open-source mini-computer. Seems like a cool idea to us—you and your friends could get a few and have a race, or, better yet, when we’re cruising by you in our ride, we’ll gun the motor and figure out the speed differential it takes to knock a cyclist over. Check after the jump for a short clip of the vest in action.