Citizens of Philadelphia, beware: You may see a grown man whizzing by you on a skateboard, doing 20 mph. That would be PopSci staff photographer John Carnett, and in case you dont get a good look, its a souped-up, motorized board he built from the ground up.
$CAJUN$ can you email me schematics and maybe a parts list a walters.sk8r@gmail.com
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