(Portland, OR)  --  Lime is replacing its electric scooters in Portland.  The new Gen4 e-scooters have handles that are easier to grip, a dual hand brake system, a better center of gravity, a better kickstand to keep them from falling over when parked, and a better suspension system for a smoother ride.  Since Lime launched in Portland in 2018, 400-thousand riders have taken over two million trips traveling over two-point-three million miles.