The Tern GSD has a ton of torque, but can it tow a car? Test Manager Dan Roe takes a look at how Tern pulled no punches in making this one of the most complete e-bikes on the market.br br When it came out in 2017, the original Tern GSD was one of the most useful e-bikes we’d ever tested. The new one is even better. With twice the range of most e-bikes, and enough carrying capacity for kids and groceries, the Tern GSD R14 makes a strong case for replacing a car. The revamped bike includes a high-torque motor, suspension fork, brake lights, and more to get you through your daily routine.