How Fast Does an Electric Bike Go?

Electric bikes (or e-bikes) have revolutionized transportation, offering an efficient, eco-friendly, and often thrilling way to get around. But one question comes up frequently: How fast does an electric bike actually go? Let's break down the speed capabilities, the factors that influence it, and what you need to know to maximize performance safely and legally.

Electric bikes are becoming increasingly popular, and it’s easy to see why. They offer an efficient way to travel and can reach exciting speeds. For those who are new to e-bikes, one of the most common questions is about how fast these bikes can go. Here, we’ll explore the ins and outs of e-bike speed, from average limits to factors that influence it, so you can make the most informed decision before you hit the road.


What Is an Electric Bike?

Oraimo 750W-1000W Electric Bike for Adults, 45 Miles, 20" Fat Tire Folding E-Bike

An electric bike, or e-bike, is a bicycle equipped with an electric motor that assists with pedaling or propels the bike forward on its own. E-bikes typically fall into two categories:

  • Pedal-assist bikes: These only provide motor assistance when the rider is pedaling.
  • Throttle-based bikes: These can operate with just the throttle, allowing the rider to engage the motor without pedaling.

Understanding Speed Classes of Electric Bikes

There are three main classes of electric bikes, each with different speed limits and operating features:

  • Class 1: Pedal-assist only, with a maximum speed of 20 mph.
  • Class 2: Equipped with a throttle, allowing a top speed of 20 mph without pedaling.
  • Class 3: Pedal-assist only, but can reach speeds up to 28 mph. Often called "speed pedelecs," these may have additional restrictions, like age limits or helmet requirements, depending on local regulations.

Factors That Affect Electric Bike Speed

Vivi Electric Bike 500W, 26" Step Through Ebike, Removable 48V Battery, 20MPH

E-bike speeds can vary based on several factors, including:

  1. Motor Power and Wattage
  2. Battery Capacity
  3. Terrain and Environmental Factors
  4. Rider Weight and Input

Each factor can impact your bike’s maximum speed and overall performance.


The Role of Motor Power and Wattage

How Fast Does an Electric Bike Go?

The motor is the powerhouse of an e-bike. Generally, e-bikes have motors ranging from 250 watts to 750 watts:

  • 250W motors: Offer modest speed, suitable for flat terrains and casual riding.
  • 500W motors: Provide better acceleration and can handle inclines better, reaching speeds of around 20 mph.
  • 750W and above: These motors can support speeds up to or exceeding 28 mph, especially in Class 3 e-bikes.

Battery Capacity and Its Impact on Speed

Battery size influences both speed and endurance. A higher-capacity battery doesn’t necessarily make the bike faster but allows it to sustain higher speeds over a longer distance. For longer commutes or faster rides, look for batteries with a higher watt-hour (Wh) rating.


Terrain and Environmental Influences

The environment can have a substantial impact on e-bike speed. Factors like hills, wind, and rough terrain can slow you down, while smooth, flat roads make it easier to reach top speeds. Wind resistance, in particular, plays a role, especially when riding at higher speeds.


Legal Speed Limits for Electric Bikes

Many regions have laws that cap e-bike speeds. For instance, in the United States, Class 1 and Class 2 e-bikes are generally limited to 20 mph, while Class 3 can go up to 28 mph. Always check your local regulations, as riding faster than permitted can lead to fines or even impoundment.


How Rider Weight and Input Affect Speed

A heavier rider may experience slower acceleration and max speed due to the increased load on the motor. However, pedaling harder or more frequently can help achieve and maintain higher speeds, especially on pedal-assist bikes.


Average Top Speed of Electric Bikes

Generally speaking:

  • Class 1 and Class 2 e-bikes can reach speeds of up to 20 mph.
  • Class 3 e-bikes can reach up to 28 mph, giving a boost in commuting speeds.

In comparison, traditional bikes average around 12-14 mph, making e-bikes a faster alternative for urban travel.


Can You Modify an Electric Bike for Higher Speeds?

Yes, some riders choose to modify their e-bikes by upgrading motors or removing speed limiters. However, such modifications can void warranties and might make the bike illegal to ride on public roads. Always weigh the risks before attempting any modifications.


Benefits of High-Speed Electric Bikes

High-speed e-bikes can:

  • Reduce commute times
  • Serve as a practical alternative to cars
  • Make traveling uphill or through strong winds easier

They are also generally more fun to ride, adding a thrill to everyday commuting.


Safety Tips for Riding Fast on an Electric Bike

When riding at higher speeds:

  • Wear a helmet and other protective gear.
  • Be cautious around pedestrians and other vehicles.
  • Maintain control by gripping the handlebars firmly and watching for road obstacles.

Practicing safe riding habits can greatly reduce the risk of accidents, even at higher speeds.


Why Speed Isn’t Everything: The Joy of E-Bike Riding

Speed is just one aspect of the e-bike experience. The comfort, ease of riding, and eco-friendliness make them a fantastic choice for commuters and recreational riders alike. Even at lower speeds, e-bikes offer a unique, enjoyable way to explore.


Conclusion

Electric bikes offer varying speeds depending on class, motor power, battery capacity, and rider influence. While Class 1 and 2 e-bikes max out around 20 mph, Class 3 bikes offer speeds up to 28 mph, making them an ideal option for those wanting a faster commute. Whether you’re in it for speed or the enjoyment of riding, electric bikes provide a flexible, eco-friendly, and exciting way to travel.

FAQs

What’s the fastest an electric bike can legally go?

Generally, Class 3 e-bikes are capped at 28 mph in most areas. Some e-bikes can go faster, but they may not be legal for road use.

How does battery size affect speed?

A larger battery allows for sustained high speeds but doesn’t necessarily increase the bike’s maximum speed.

Can an electric bike keep up with traffic?

In many urban areas, a Class 3 e-bike’s speed of 28 mph is sufficient to keep up with city traffic.

Are faster e-bikes more dangerous?

Higher speeds increase the risk of accidents, so proper gear and safe riding habits are essential.

Do you need a license to ride a high-speed e-bike?

It depends on local regulations. Some regions require licenses for e-bikes over certain speeds.

Back to blog