You have just acquired your very first fat electric bike or are about to buy one? Our advice is to carefully choose the size of your fat electric bike. Why? It is a key element to ensure your comfort, performance, and even your safety on the road.
This guide contains all the information you need to choose the right size of a fat bike. We will cover everything from frame adjustments to the importance of tires, so you can find the perfect model.
Why is the size of a fat bike so important?
Choosing the right size for your fat bike is more than just a matter of comfort: it’s a condition for fully enjoying your outings. An unsuitable size can turn a pleasant ride into a real ordeal for your body.
When comfort takes precedence
The electric fat bike is a machine that does not go unnoticed. With its large wheels, this vehicle offers exceptional grip on all types of trails. However, even with XXL wheels, comfort is not always guaranteed.
To ensure optimal comfort, we recommend choosing a suitable frame size. If the frame is too large or too small, you may experience pain in your back and knees. However, adjustments such as saddle height or handlebar position will not be enough to compensate for this poor fit.
To find the ideal frame size, measure your inseam carefully and make sure to leave a few centimeters of clearance between you and the frame while standing.
Impact on performance
Riding a fat bike that is not suited to your proportions can impact your performance. Even if the frame is custom-made, if the other components are not suitable, performance can suffer.
For example, in terms of tires, the ideal width is between 3.8 and 5 inches. Tires play an important role in stability on loose terrain. They also provide enough grip to prevent slipping.
Finally, choose your suspension wisely, as it helps to optimize comfort without sacrificing handling.
Ensure safety
An ill-fitted fat bike can quickly become dangerous. Indeed, an improper size can complicate the control of the bike and increase the risk of falls. With a properly sized frame, you will be able to maintain control of the vehicle and enjoy your rides.
The criteria for choosing the size of a fat bike
Choosing the ideal size of a fat bike may seem complicated, but it is not an impossible mission! Between the frame size, wheel diameter, and type of bike, the elements to consider are not very numerous. Follow our tips to avoid making a mistake.
The size of the frame and your morphology
The first thing to do to find the right fat bike frame size: measure your inseam length. Then multiply this measurement by 0.59 and you will get an accurate estimate of the frame size in centimeters.
For example, for a person measuring 150 to 155 cm, a frame of 33 to 36 cm is recommended. On the other hand, if you measure more than 190 cm, a frame of 51 to 56 cm will be more suitable.
Attention, specific cases exist:
● The electric bikes for women often have a frame specially adapted to female proportions.
● Children and tall riders also have specific models for a better experience.
● A size guide or a chart provided by the manufacturer is available to avoid mistakes when purchasing.
The geometry of the frame
When talking about the size of a fat bike, we often think of the height of the frame, but geometry also plays an essential role in comfort and performance. Basically, geometry defines how the bike behaves under your legs, and it influences how you will feel on it.
If you're looking to be more comfortable, some frames are designed to offer a more upright riding position, which reduces pressure on the back and arms. This is ideal if you prefer to ride leisurely, over long distances or on less rugged terrain.
On the other hand, if you intend to push a bit more on performance or take tight turns, a more aggressive frame, with a more sloped top tube, can allow you to better control your fat bike at high speeds. This kind of geometry places you a bit more forward on the bike, which can be more dynamic, but also a bit more physically demanding.
A comfortable position or a sportier drive, it's up to you to choose!
The diameter of the wheels and the type of terrain
The diameter of the fat bike wheels has a direct impact on its performance. Basic models are usually equipped with 20-inch diameter wheels, but options of 26 or even 29 inches are also available.
● The standard 20-inch wheels are suitable for off-road use, as they provide good stability.
● Wide wheels (over 26 inches) are used for long and difficult trails.
The type of fat bike and its use
The choice of fat bike type depends on your needs:
The classic fat bike is suitable for hiking enthusiasts and for 100% recreational use. As for the electric fat bike, it is mainly used by riders engaging in off-road activities. The electric assistance allows them to benefit from a boost on difficult terrains and long distances. Models like the two-seater cargo electric bike Garrett Miller Z are particularly popular due to their front and rear dual suspension and durability.
How to adjust your fat bike after purchase?
Your fat bike is finally in your hands, but this is just the beginning. To make the most of your new road companion, some adjustments are necessary. From saddle height to tire adaptation based on terrain, every detail matters.
The adjustment of the frame and the saddle
A well-adjusted frame ensures a comfortable ride! Start by adjusting the saddle height according to your body shape. The rule is simple: when you are seated, your leg should be slightly bent when the pedal is at its lowest point. If you are using an electric fat bike, don't forget to take the extra weight into account to maintain good balance.
Adaptation to the terrain
The terrain plays a crucial role in the settings of your fat bike. Here are some adjustments to make based on the terrain you will be riding on:
● On snow and sand, reduce the pressure of fat bike tires (between 0.3 and 0.6 bar) to maximize traction.
● In the forest or on rocky paths, a higher pressure offers more maneuverability.
● In the city, prefer a normal pressure (around 1.8 bar) to combine comfort and speed.
The importance of accessories
Well-chosen accessories can make all the difference. For example, the fork helps absorb shocks on rough terrain, while the carbon frame offers lightness and strength. Also, remember to regularly maintain your bike. Check, among other things, the tire pressure and the condition of the brakes.
Other relevant questions about the size of a fat bike
1. What impact do the frame materials have on comfort and performance?The frame materials influence both the weight, stiffness, and comfort of the bike.
• Aluminium: Lightweight and rigid, it offers a responsive ride, but can be a bit less comfortable on rough terrain.
• Steel: More flexible, it absorbs vibrations better, making it ideal for rough terrain and for increased comfort.
• Carbon: Very light and high-performing, it is a premium option for cyclists looking for maximum performance, although this is also reflected in the price.
2. How does the weight of the cyclist affect the choice of size and components?
The weight of the cyclist can have an impact on the choice of tires and suspension.
• For heavier cyclists, it may be necessary to opt for wider tires to improve traction and comfort, as well as a reinforced suspension to better absorb shocks on rough terrain.
3. What is the difference between a rigid fat bike and a suspended fat bike?
• A rigid fat bike does not have suspension, making it lighter and more affordable, but it is less comfortable on very rough terrain.
• A suspended fat bike is equipped with a suspension (often at the front, sometimes also at the rear), providing better comfort, especially on technical or uneven terrains such as snow or sand.
4. What size fat bike is suitable for children or small people?
There are models specifically designed for children or small people.
• Kids' fat bikes have lower frames to make it easier to get on and off the bike.
• For shorter individuals, some models are equipped with shorter frames and adjusted components to provide better comfort and maneuverability.
Conclusion
Choosing the right size for your fat bike ensures comfortable and high-performing rides, no matter the terrain. To avoid mistakes, the size guide provided by the manufacturer is an excellent starting point. If in doubt, seek advice from experts. Ready to take the plunge? Discover the best models of electric fat bikes on Weebot and find the ideal companion for your adventures. Click, explore, and choose your future fat bike now!