How fast can a 1500w ebike go?

The maximum speed of a 1500w eBike will vary depending on a number of factors, such as the weight of the rider, the terrain, and the level of pedal assist. However, in general, a 1500w eBike can reach speeds of up to 30-40 mph. It's important to note that, in most places, there are legal limits on the speed of electric bikes, so it's important to check LOCAL regulations before riding. Additionally, it's important to wear appropriate safety gear and ride responsibly at all times.