How Fast Can an Ebike Go? Everything You Need to Know

Juggernaut FS ST MTB cover

You already know that an e-bike is faster than a regular bike. But just how fast can an e-bike go? 

E-bikes are limited by their components' speed. But, environmental factors matter too. One surprising reason is your weight!

The Biktrix article explains everything you need to know for 2024!

eBike Speeds and Regulations

The speed allowed for e-bikes varies depending on the country and its specific regulations.

In many places, e-bikes are classified into different categories based on their maximum assisted speed capabilities and motor power. 

These classifications help ensure that your e-bike is used safely and appropriately on public roads.

For instance, in the United States, there are three e-bike classifications:

Class 1

These e-bikes come with pedal assistance, which means that the motor only activates when the rider is pedaling. This feature cuts off at 20 mph (32 km/h). 

Class 1 e-bikes are allowed on most bike paths and trails.

Class 2

These electric bikes have a throttle that lets you ride faster without pedaling, up to a max speed of 20 mph (32 km/h). 

Class 2 electric bikes offer more flexibility but may have more restrictions on where you can ride them.

Class 3

Class 3 e-bikes are also pedal-assist bikes, but the motor provides assistance up to 28 mph (45 km/h). They are often used for commuting and can keep up with urban traffic. However, they are restricted from bike paths and trails where slower speeds are required.

In Europe, e-bikes are often limited to 25 km/h (about 15.5 mph) with a maximum motor power of 250 watts, and riders must use the pedal assist feature. 

Various countries may have different rules, such as age restrictions and helmet requirements.

Impact of Regulations on eBike Usage

Your e-bike's speed limit varies with usage location and local rules. Following speed limits helps keep all road users safe. This includes pedestrians and other cyclists. It also affects the popularity and adoption of electric bikes in various regions.

Electric bikes are used more for leisure and commuting in places with strict speed limits and rules. They are also used in low-speed areas. In faster regions, electric bikes may be used for longer commutes and faster travel.

You must understand and follow your local e-bike rules. This is key for safe and legal riding. It also helps riders choose the right type of e-bike for their needs and environments. It ensures a balance between speed, safety, and functionality.


Juggernaut FS ST MTB bikes

Factors Affecting eBike Speed

Here are some of the factors that can affect how fast your e-bike goes:

Motor Power

eBikes come with different motor ratings, usually measured in watts. A higher-wattage motor provides more power, allowing the eBike to achieve higher speeds. 

For instance, a 250-watt motor is typical for standard e-bikes, while performance models may feature motors with 500 watts or more. The motor's power directly impacts how quickly an eBike can accelerate and maintain speed, especially on inclines or rough terrain.

Battery Capacity

The battery supplies the energy needed for the motor to operate. A larger battery not only extends the range of the eBike but also supports sustained higher speeds. 

As a rider, you should consider both the voltage and amp-hour rating of the battery. These numbers determine how much power the motor can draw and for how long. For example, a 36-volt battery has more amp-hours. It will generally provide more sustained power. It will provide more power than a lower-rated battery. This allows higher speeds over longer distances. 

Rider Weight

Heavier riders require more power when cycling to achieve the same speed as lighter riders. This is because the motor must work harder to move the additional weight. As a result, the maximum speed an e-bike can reach may vary based on who is riding it. 

Manufacturers often provide weight limits for optimal performance, and staying within these limits can help ensure the e-bike performs at its best. For example, Biktrix’s Juggernaut Ultra Duo 4 and the Skycap 2 are specially designed for heavier riders.

Terrain and Road Conditions

Terrain and road conditions are critical factors that influence e-bike speed. Riding on flat, smooth surfaces allows for higher speeds compared to steep hills or rough terrains. 

For example, an e-bike can easily maintain a high speed on a paved city road but may slow down significantly on a steep, unpaved trail. Obstacles like potholes or gravel can also reduce speed and require careful navigation.

Wind Resistance

Wind resistance is one of the important factors affecting e-bike speed, especially when riding against the wind. On windy days, e-bike may not reach their top speeds due to increased air resistance. 

Aerodynamic factors, such as the rider's posture and the design of the electric bike, can also affect the amount of wind resistance encountered. Minimizing wind resistance by adopting a more aerodynamic riding position can help maintain higher speeds.

Tire Type and Pressure

Tires with lower rolling resistance, such as smooth, narrow tires, can help achieve higher speeds compared to wider, knobby tires designed for off-road use. 

When you maintain the recommended tire pressure, it ensures optimal contact with the road, reducing drag and allowing for smoother, faster rides on your electric bike.

Suspension and Frame Design

An electric bicycle with a full suspension drive system, such as the Juggernaut Ultra FS Pro 3 Fat, can absorb shocks from rough terrain, allowing for smoother and faster rides. 

If the e-bike's frame is heavy or poorly designed, it may reduce its speed due to increased weight and less efficient power transfer. 

Lightweight frames made from materials like carbon fiber or aluminum can also boost speed by reducing the e-bike's overall weight.

Riding Style and Technique  

Efficient pedaling, maintaining a steady cadence, and using the gears effectively can help the electric motor work more efficiently and boost overall speed, especially over long distances. 

You should also anticipate changes in terrain and adjust your top speed and pedaling effort accordingly to maintain momentum. As you learn and practice the proper riding techniques, you’ll notice a difference in the performance and speed of your electric bike.

Weather Conditions

When it rains or snows, slippery surfaces can occur, requiring riders to ride significantly below their bikes' top speed to maintain control and safety. 

Also, cold temperatures can reduce battery efficiency, leading to decreased power output and lower speeds. Conversely, riding in favorable weather conditions, such as mild temperatures and dry surfaces, can enhance e-bike speed and performance.

Motor and Battery Age

Over time, electric bike motors and batteries may wear out, leading to reduced speed capacity and power output. 

Regular maintenance and timely replacement of these components can help ensure that the e-bike continues to operate at optimal speeds. You should regularly monitor the battery health and performance of your electric bikes to prolong their life and maintain their speed capabilities.

Real-World Speed Examples

Here are some practical examples of average bike speed as used in different settings:

Commuter eBikes  

Commuter e-bikes are designed for daily use in urban and suburban environments. They typically have moderate motor power and battery capacity, allowing them to reach speeds suitable for city commuting. 

On average, commuter electric bikes can travel at speeds between 15 to 20 mph (24 to 32 km/h). This speed range makes them ideal for navigating traffic, keeping pace with other vehicles in bike lanes, and making commutes efficient without being excessively fast.

Performance and Racing eBikes

 Juggernaut Classic Duo SO

Performance and racing electric bikes are built for speed and agility, often featuring high-power motors, advanced battery systems, and lightweight frames. The Juggernaut Classic Duo is an excellent example of a high-powered monster of an ebike.

These eBikes can reach higher speeds, sometimes exceeding 28 mph (45 km/h) or more, depending on the model and conditions. 

Comparison with Traditional Bicycles

When compared to traditional bicycles, eBikes generally offer higher average speeds with less physical effort from the rider. 

A traditional bicycle's speed largely depends on the rider's fitness level and terrain. On flat terrain, the average speed for a regular bike ranges from 10 to 15 mph (16 to 24 km/h). An electric ebike, with pedal assist features, can easily surpass these speeds, making it a more efficient option for many riders.

The ability to maintain higher speeds with less effort makes electric bikes particularly appealing for those looking to commute longer distances or ride in hilly areas.

Safety Considerations

What about e-bike safety?

Riding an e-bike at higher speeds increases the risk of injury in the event of an accident.

Here are 6 tips from the Biktrix team to help you stay safe on the road:

  1. To provide additional safety, wear specific protective equipment such as helmets, gloves, knee pads, and elbow pads.
  2. Understand your ebike’s limits and ride within those limits to help prevent accidents and ensure a safer riding experience.
  3. Keep both hands on the handlebars and be ready to use the brakes. Familiarize yourself with the bike's braking system and practice controlled stops.
  4. Use the lights and wear reflective clothing, especially when riding at dusk or night. This ensures that other road users can see you.
  5. Local traffic regulations apply to electric bikes, including speed limits and right-of-way rules. Ensure that you adhere to these regulations
  6. Look out for potential hazards such as potholes, debris, pedestrians, and other vehicles. Anticipating obstacles allows you to manipulate your e-bike more smoothly and avoid sudden maneuvers.

Choose the Right E-Bike!

While your electric bike has its maximum speed, you should know that it’s not going to be so all the time. Electric bicycles have various parts. These parts work with other factors, like the terrain and your weight, to decide how fast it can go.

If you’re ready to get an e-bike, you can check out some of the top offerings from Biktrix and make your choice based on the purpose you have in mind. 

Have fun riding your electric bike!

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