Caliper brakes are old tech. V-brakes work great on tandem bikes; I'm sure that thing isn't going any faster than a tandem on a downhill, and it weighs about h

Caliper brakes are old tech. V-brakes work great on tandem bikes; I'm sure that thing isn't going any faster than a tandem on a downhill, and it weighs about half as much. That said, good caliper brakes will slow a solo rider down just fine. If you can brake enough to endo, you can brake enough. I also disagree with your statement that this is not an electric bike. It is, and it is marketed as such. It has bicycle geometry and bicycle weight, and notably lacks a pair of heavy-ass gyroscopes. This is going to handle like a cargo bike.