So I've been riding both for over a decade. And this kind of cracks me up for several reasons. 1. I can in fact travel faster on my road bike then my electric bike. The components add more weight. 2. There is already a law limiting the top speed of the assist system to 20/25 mph. So to think you have these cruising at 40mph is crazy. And for reference, I have hit this speed and it's terrifying on most bikes. 3. Studies have shown that imposing restrictions like this simple decrease participation which in turn adds to sedimentary behavior which is a lot worse for you in the end. 4. This reminds me of the same nonsense as a representative that tried to create a seat belt law for motorcycles...