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Sproingy Wheels!

I ran across the following on AliExpress, selling for $109.73 a pair.

At first glance, it looks like inline skates where the wheels are at the bottom of a sprinted platform. However fatal such an arrangement must be, I was tempted.

The reality is somewhat less bad. The wheels and springs are options; you get the boots and both kinds of bases and attach whichever you prefer.

motorized unicycle seen in the wild

I’m pretty sure we’ve written about this design before, but I’m too lazy to check. Seen in the wild today in Grand Central Station. The thing looks to weigh at least 30 pounds and the rider had to lug it up a long staircase before he could use it.

setting up

riding