Electric bike weight: what's the right weight for you?
If you're thinking of buying an electrically-assisted bicycle (EAB), it's crucial to consider an often overlooked factor: weight. An electric bike usually weighs more than a conventional bike, mainly due to the additional components such as the battery and motor. Weights can vary depending on the model, materials used and features offered. While some bikes are designed to be as light as possible, others are more robust to meet specific needs such as MTB electric or longer journeys. In this article, we'll explore the different facets of electric bike weight and how to choose the one that's right for you, depending on your specific use and needs.
Weight varies according to the type of electric bike
When it comes to choosing an electric bike, weight can vary considerably depending on the type of bike you're considering. Here are some popular categories and their average weight:
Electric city bikes
These bikes are generally designed for everyday urban use. They often include accessories such as a luggage rack, basket or even a child's saddle. Because of these additions, an electric city bike can weigh between 18 and 22 kg.
Electric mountain bikes (MTB)
Electric road bikes
Electric road bikes aim to maximize speed and efficiency. Their design is often more minimalist and aerodynamic, making them lighter. They generally weigh between 16 and 19 kg.
Folding electric bikes
Folding electric bicycles are perfect for those who need multimodality in their travels. They are easy to fold and transport. However, the ease of folding can sometimes increase the weight due to additional locking mechanisms. They range in weight from 15 to 18 kg.
Electric cargo bikes
The electric cargo bike is designed to carry heavy loads. They are ideal for small delivery companies or for running errands. Weight can beup to 30 kg or more, depending on load capacity.
Electric fat bikes
With wide tires for better grip on difficult terrain such as sand or snow, these bikes are generally heavier, weighing between 25 and 30 kg.
Electric bikes for kids
Designed to be smaller and safer for young cyclists, these bikes are naturally lighter, typically weighing between 14 and 18 kg.
Center of gravity and weight distribution
Center of gravity and weight distribution are key elements to consider when choosing an electric bike. The positioning of the battery, motor and other heavy components greatly influences the weight distribution on the bike. A low center of gravity promotes stability and maneuverability, especially when cornering or descending. Conversely, a higher center of gravity can make the bike more unstable and difficult to maneuver, especially at high speeds or on rough terrain.
Difference by bike type
The different types of electric bikes, such as city bikes, MTB electric bikes, or electric racing bikes, have very different mass distributions:
- City bikes: a city bike is designed for comfort and ease of use, with components such as baskets and luggage racks. The center of gravity is generally lower to facilitate urban riding.
- MTB electric: on an MTB electric bike, weight distribution needs to be balanced to deliver the best off-road performance. These bikes often have a slightly higher center of gravity for better maneuverability on complex terrain.
- Electric racing bikes: for electric racing bikes, weight is often distributed to maximize speed and efficiency. The center of gravity may be lower to improve aerodynamics.
What about the rider's weight?
When talking about the weight of an electric bike, it's also important to consider the weight of the rider. Although electric bikes are designed to support heavier loads than traditional bikes, the rider's weight still has a significant impact on the bike's performance.
The heavier the rider, the greater the effort required of the motor and battery to maintain a constant speed or climb inclines. This will reduce the bike's range and overall efficiency.
The main factors influencing the weight of an electric bike
The weight of an electric bike is the result of a combination of several components. Here are the main elements that contribute to the total weight:
Battery weight
The battery is often one of the heaviest components of an electric bike. Lithium-ion batteries are commonly used for their good power-to-weight ratio, but they can nevertheless weigh between 2 and 3 kg, or even more for models with a long range. A larger battery will offer greater range, but will also considerably increase the bike's weight.
The motor contributes to the weight of the electric bike
The motor is another heavy element that adds to the total mass. Hub motors, located in the wheel, or pedal motors, located near the pedals, generally weigh between 2 and 4 kg. The choice of motor type and size can therefore significantly affect the weight of the bike.
Frame construction also affects bike weight
Frame material is a key factor in bike weight. Aluminum frames are lighter, typically weighing between 1 and 3 kg, while steel frames can weigh up to 5 kg. Some top-of-the-range electric bikes use materials such as carbon to further reduce weight, but this can increase cost.
Suspensions
Suspension systems, particularly present in electric MTB , add weight. A front suspension fork can add around 1-2 kg, and a rear suspension can add another kilo.
Brakes and tires also contribute to the load.
Braking systems, especially disc brakes, can add anywhere from a few hundred grams to several kilos to the total weight of the bike. Similarly, the thicker, sturdier tires used for rough terrain or difficult conditions can add extra weight.
Accessories also weigh on electric bikes
Items such as racks and baskets, mudguards and lights can quickly add extra kilos. While these accessories are often necessary for comfort and functionality, it's important to consider them in the overall weight if you're looking to minimize your bike's mass.
The advantages of a lightweight electric bike
Easy to transport
A lighter electric bike is much easier to transport, whether for going up and down stairs, loading it into a vehicle or using it with other modes of transport such as the train or bus. This ease of transport can make a lightweight electric bike particularly attractive to those who live in apartments or regularly use multimodal means of transport.
Improved handling and steering
Lighter weight generally translates into better handling and more responsive steering. This can be particularly beneficial in urban environments where the ability to navigate quickly and efficiently through traffic is essential. A lightweight electric bike is often easier to control, which can improve your confidence on the road and make the riding experience more enjoyable.
Increased autonomy
Reduced weight can also have a positive impact on battery life. Less weight means that the motor and battery have less work to do to propel the bike, which can enable you to cover longer distances on a single charge. However, it's essential to note that range is also influenced by other factors such as terrain, riding style and weather.
Selection criteria for the weight of an electric bike
Bike weight can be an important factor in your purchasing decision, and we'll try to guide you as best we can.
Your type of use
The intended use of your electric bike has a significant impact on the ideal weight. If you plan to use it mainly for urban commuting, a lighter bike might be more practical. On the other hand, if you're more oriented towards MTB or longer distances, a sturdier and therefore potentially heavier bike might be more appropriate.
Note also that for urban use, you'll probably prefer a very light machine, as you'll often have to climb steps or lift it to take it on public transport, for example.
Frequency of use
If you use your electric bike regularly or for long distances, weight can become an important factor in minimizing fatigue and wear. In this case, a lighter bike would be more comfortable for frequent use.
Type of land
The type of terrain you plan to ride on also affects your choice of weight. Rougher terrain generally calls for stronger, heavier bikes, equipped with appropriate suspension systems and tires . For flat terrain or urban commuting, a lighter bike will be more than sufficient.
Links between weight and price of an electric bike
The weight and price of an electric bike are often linked, although this relationship is not always linear. Here's what can influence the weight of a bike, depending on its range.
Top-of-the-range electric bikes
Top-of-the-range electric bikes are often made from advanced materials such as carbon or high-quality aluminum alloys. These materials are both light and strong, but they are also more expensive to produce. As a result, you may find that the lighter, stronger bikes are often in the higher price range. These bikes also offer other high-end features, such as advanced braking systems and higher-capacity batteries, which can also contribute to a higher cost.
Entry-level electric bikes
At the other end of the spectrum, entry-level electric bikes tend to be heavier, due to the use of cheaper, heavier materials such as steel. Although these bikes are more affordable, the extra weight can reduce maneuverability and battery range. However, if price is a major consideration and you're willing to sacrifice on certain aspects like lightness and range, these models could be a viable option.
Value for money
Value for money is a key metric that can help you strike a balance between cost and bike features, including weight. Some mid-range electric-assist bikes offer an excellent compromise, with reasonable weight and lower cost than high-end models. These are often good options for those looking to maximize value without compromising too much on weight or other features.
Our FAQ on the weight of electric-assist bicycles
What's the ideal weight for an electric bike?
The ideal weight of an electric bike depends on your personal preferences and how you intend to use it. Some prefer lighter bikes for better maneuverability, while others prefer a heavier bike for greater stability. In general, the average weight of an electric bike is between 20 and 30 kilograms.
Does the weight of an electric bike influence its performance?
Yes, the weight of an electric bike can influence its performance. A lighter bike will be easier to maneuver and transport, while a heavier bike may offer greater stability on uneven terrain. However, it's important to note that the electric assistance partly compensates for the extra weight, which means that even a heavier bike will still give you a pleasant riding experience.
What components on an electric bike influence its weight?
The components of an electric bike that influence its weight are mainly the battery, motor, frame and other accessories. Batteries tend to be the heaviest components, followed by the motor. Opting for a lighter battery can reduce the overall weight of the bike. What's more, aluminum or carbon frames are generally lighter than steel frames.
Does the weight of an electric bike vary according to its type?
Yes, the weight of an electric bike can vary depending on its type. Electric city bikes tend to be lighter, as they are designed for use in urban environments rather than on rough terrain. MTB electric bikes, on the other hand, tend to be heavier, as they are designed for more demanding off-road use. Choosing the type of bike that best suits your needs can therefore also influence the weight of the electric bike.
Does a heavier electric bike offer better electric assistance?
No, the weight of an electric bike has no direct impact on the electric assistance it offers. Electric assistance is mainly determined by motor power and the selected assistance level. However, it is important to note that the weight of the bike can influence the feel of the electric assistance. A heavier bike may feel more stable and solid, while a lighter bike may feel lighter and more responsive.
What is the average weight of an electric bike?
The average weight of an electric bike is between 20 and 30 kilograms. However, it's important to note that weight can vary depending on the different models and customization options chosen. Some electric bikes can weigh less than 20 kilograms, while others can weigh more than 30 kilograms.
How to reduce the weight of an electric bike?
To reduce the weight of an electric bike, you can opt for lighter components, including a lighter battery, aluminum or carbon frame, and ultra-light accessories.
Does the weight of an electric bike affect its handling on the road?
Yes, the weight of an electric bike can affect its behavior on the road. A heavier bike may require a little more effort to start and stop, and may be less responsive in tight turns. However, once in motion, the electric assistance partly compensates for the extra weight, which means you shouldn't feel much difference in the ride...