An Ebike that can reach speeds of 50 mph (80 km/h) is considered a high-performance Electric Bicycle. These types of Electric Bicycles are often referred to as electric motorcycles due to their high speeds. They typically have powerful Ebike Motor, larger battery capacities, and advanced suspension systems to handle the increased speed and power. It's important to note that the legality of Electric Bike that can reach speeds of 50 mph varies by country and region. In many places, electric bicycles are limited to lower speeds, typically around 20-28 mph (32-45 km/h), to ensure safety and compliance with local regulations. Riding an Electric Bicycle that can reach 50 mph requires caution and skill, as it can be significantly faster than regular bicycles. Riders should wear appropriate safety gear, including helmets, and be aware of local traffic laws and regulations.