Do electric cars have gears?
Petrol engines only work well when running at particular speeds and produce very little force (torque) when they are running slowly. This means petrol cars wouldn’t work properly without gears to manage the power output of their engines, but electric motors don’t have these problems. They work efficiently running fast or slow and produce a lot of torque even when running at only a few revolutions per minute. So electric cars only need one gear.
Because electric car motors only need a single gear, electric cars can be made lighter