It's a journey that's kept inventor and electrical engineer Jeff Guida busy for the past nine months. The former hedge fund analyst is testing a small, portable engine-in-a-box which gives an electric boost to heavy city rental bikes.
October 8, 2013
July 16, 2013
July 26, 2018 — Jen Schwartz and Kelsey Kennedy
July 20, 2018 — Mark Fischetti