Is it April the first or did your source find that on a post somewhere dated April 1st. It's absolutely impossible for the control system of a crank-drive bike to know what speed the bike is going. Whatever speed sensor they used, including GPS, it wouldn't take a genius 5 minutes to figure out how to blank it off and send a different signal like the present dongles do. Even if they could do it with encrypted codes, there would be an immediate market for after-market controllers. All motors work the same, so it's relatively easy to use a different controller and control system.
I can remember in 1999 when they brought out DVDs. They said it would take the most powerful computers a million years to crack the security encryption system. A gang of hackers did it in about 3 hours, so we could all copy DVDs. Even when they brought out the DVDHD and Blueray encryption, which was even more sophisticated and secure, it still didn't take long for the hackers to have a decryption system. 13,256,278,887,***,***,***,***,***,***,401,704,640 is the magic number. I think it's actually an illegal number, so I blanked out the middle.