Published October 27, 2016 12:00AM

Crank it up to 20 mph.
Most e-bikes are big, heavy, and a pain to haul around when you’re not pedaling. The Vektron ($3,400) bucks that trend, with a frame that folds down small enough to fit under your desk at work. It also has a motor with a max speed of 20 miles per hour built into that packable body.