I've been around engines my whole life. I've written about things that go vroom, things that go chugga-chugga, and things that go whoosh. The smell of gasoline was my perfume for decades. But then ...

There's little doubt that electric dirt bikes will eventually replace gas-powered ones, much like four-strokes replaced two-strokes. The XE4 by Xtreme Electric MX (XEMX) is a bolt-on kit that converts ...