It is important to learn the difference between top speed and pushback when riding. Knowing this will not only help you ride safely, but it will also allow you to get the most out of your board. Top Speed is the max speed of your board, this differs between riding modes. Pushback is a safety feature that is defined by a number of parameters including battery life, grade of terrain, approaching top speed, temperature, overcharge, etc.
Pushback is the board communicating physically to the rider by lifting the nose. Our biggest recommendation is to respect pushback, most injuries happen when riders are ignoring what their board is trying to communicate with them. While riding if you experience pushback we recommend slowing down as your board is telling you that you are pushing it to its limits.
If the board ever receives an error, such as running out of battery or overcharging by regenerating too much on a full charge, you will also receive a much stronger version of pushback called Extreme Pushback. At this point, you need to slow down to a stop by relaxing and shiting your weight back until you are stopped and disengage the board. At that point, you can determine what error caused the extreme pushback either through the Onewheel App or the LEDs blinking on the board itself as described in your owner's manual
Check out our pushback video linked here so you can see what we're talking about.