Electric bicycles are an upgraded version of ordinary bicycles. They are very common as a means of transportation around the world, and the United States is one of the largest electric bicycle markets. In recent years, there has been a craze for electric bicycles in the United States. People of all ages are using electric bikes, mainly for commuting, exercise or entertainment. In order to get more pleasure or fresh experience from riding, many Americans are favoring faster and more powerful e-bikes. However, for safety and compliance reasons, it is more recommended that people choose the fastest electric bike with a maximum speed of 20mph or 28mph, because this is the maximum speed regulated for electric bicycles in many states in the United States. What is the Top Speed of an E-bike in the USA? In the case of motor drive only, the federal speed limit for e-bikes is 20 miles per hour (20 mph) or less. This speed limit is also mandated by the tiered classification system adopted by many states. The specific contents of this system are as follows: Class 1: Pedal assist only, top speed 20 mph Class 1 electric bikes only provides assistance when you're pedaling, and stops when your speed reaches 20 miles per hour. These e-bikes are perfect for bike lanes, bike greenways, roads, or anywhere you ride a traditional bike. Class 2: Pedal assist and throttle, top speed 20 mph Class 2 e-bikes are equipped with a throttle that allows the user to receive assistance from the motor without pedaling, and stops assisting when speeds reach 20 mph. Class 3: Pedal assist only, top speed 28 mph Class 3 electric bikes, like Class 1 e-bikes, only offer pedal assist, but with a top speed of 28 mph, which are an excellent choice for commuters who travel short distances. Most U.S. states currently adopt this classification system, with the exception of Hawaii, Kentucky, Montana, North Carolina, Oregon, Pennsylvania, and South Carolina, which regulate e-bikes as traditional bicycles, and Alaska States and Rhode Island regulate electric bicycles completely as motor vehicles. Best Fastest Electric Bikes within the Top Speed Limit Best Fast Electric Bikes with Top Speed of 20 MPH (32 KM/H) #1 Engwe T14 - Best Value Fast Electric Bike Engwe T14 is a foldable electric mini bike with a top speed of 20 mph and a range of 16 miles, making it the fastest "legal" Class 1 e-bike. This fast electric bike has good portability because it is very lightweight and easy to fold. Meanwhile, its comfort level is also very high, as it has an adjustable shock-absorbing saddle and comfortable handlebars. Best of all, at a very low price of $509.99, this e-bike is one of the cheapest electric bikes and one of the most affordable ways to commute short distances. To know more cheap electric bikes, you can head to the blog: The Best Cheap Electric Bikes of 2024>> #2 Delfast Top 3.0i - Best Fast E-bike for All Terrains The Delfast Top 3.0i is a Class 2 bike and one of the fastest electric bikes in this category, with a top speed of 20 mph. Known for its crossover versatility, the fastest electric bike is suitable for both flat city roads and country roads and trails, able to adapt to a variety of terrains and is a reliable mode of transportation in challenging conditions. #3 Buzz Cerana - Best Fast E-bike with a Step-thru Frame The Buzz Cerana combines the smooth ride of a bike with the relaxed style of oversized tires and cruiser bike frame geometry for a comfortable ride. Not only that, but it features a mid-drive motor that provides a seamless transition when starting with electric assist. #4 Vvolt Alpha - Best Fast Electric Bike for Commuting The Vvolt Alpha is a fast electric bike with a top speed of 20 mph that is comfortable, simple and durable. It provides five levels of power, making riding more easy and natural with just the right amount of motor assistance. If you're looking for a great companion for commuting around town, this is one of the ideal options. Best Fastest Electric Bikes with Max Speed of 28 MPH (45 KM/H) #1 Engwe E26 - Best Fastest Electric Bike with Fat Tires The Engwe E26 is one of the legal fastest electric bikes in the USA, equipped with a 750W motor and capable of reaching a top speed of 28 mph. This electric bike is suitable for a variety of terrains as it is equipped with 26*4.0-inch fat tires that allow riders to ride smoothly and safely on various terrains. In addition, its powerful lithium battery offers 87 miles of assisted range per charge, enabling you to ride longer and see more scenery. For those who want to find an electric bike with a long range and fat tires, Engwe E26 is the best choice. #2 Ride1Up 700-Series - Best Fastest Commuter Electric Bike Ride1Up 700-Series is an excellent electric commuter bike with 28 mph pedal assist and 20 mph throttle. The e-bike is equipped with a 48V battery and a 750W sustained geared hub motor with 60nm torque, capable of covering a range of 30 - 50 miles. And its fat tires allow riders to explore more terrain. #3 Engwe M20 - Best Fastest Electric Bike with the Longest Range The Engwe M20, which looks like a motorcycle, is actually an electric bicycle that can reach a top speed of 28 mph. The fast electric bike has both a cool appearance and powerful functions. It not only has a long cruising range, up to 94 miles, but also has good safety and high comfort, allowing riders to enjoy every mile of riding with confidence. Moreover, the fat tires of this electric bike can lead riders to conquer a variety of terrains and unlock new riding experiences. #4 Specialized Turbo Vado SL 4.0 EQ - Best Fastest E-bike (Expensive) The Specialized Turbo Vado SL 4.0 EQ is an ultralight e-bike with exceptional ride quality, range and power to handle everything from daily commutes in the urban landscape to faster workouts. With it, you will have a relaxed and comfortable riding experience. Final Thoughts There is no doubt that a fastest electric bike can provide faster speed and better riding experience, suitable for those who prioritize speed and performance. However, when choosing fast electric bikes, you should not only consider speed, but also consider the safety and performance of the e-bike. 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