My wife wanted a cargo e-bike so we can carry one of our boys in the back. We tested several cargo e-bikes and decided to purchase the Trekcraze T240. It seems solid, well built, smooth, and excellent brakes. The T240 is exactly like the TST Carrier but with hydraulic brakes. Unlocked, I got it up to 25mph with a 200lbs rider and a 60lbs kid in the back. 25mph with a kid in the back is pretty fast for us. We rode around around our neighborhood and logged 15 miles and only used 1 bar of battery. We've only had it for 2 weeks and have been happy with it so far. My only complaint would be no gear indicator on the Shimano shifter. Good e-bike for the $.