Calling it a trailer is a bit of a misnomer, since the Ridekick actually pushes you.
It’s a 40lbs attachment that ties to the back of any bicycle in 15 seconds, and houses a 500 Watt electric motor. That’s almost a horsepower and it’s enough to propel you forward at up to 19mph, for 8-12miles. Of course range is highly dependent on a number of factors, like rider weight, cargo weight and terrain topography. A simple throttle gives you speed control and there’s even extra storage in there for groceries or a briefcase, as long as these weigh less than 75lbs. At $700, it’s cheaper than most of the low end electric bikes.