This electric bike can use 3D-printed replacement parts

About a month ago, ETT Industries announced the Trayser, its new electric bicycle that, while impressive, is fairly standard as far as e-bikes go. It features an aluminum frame, a 42V lithium-ion battery, a range of 60 miles with minimal pedaling, and can reach a top speed of 15.5 mph. But what's really interesting is the ETT has revealed that …