How Is Tire Width Taken Into Consideration For Bike Computer?

Whether you prefer the road bike, mountain bike, or cyclocross bike, each of these bikes will have various tire sizes and types. The size of a mountain bike tire can significantly vary from that of a road bike tire, but it goes even further as each bike type will have various tire sizes and widths that could affect aspects of your bike. Knowing how is tire width taken into consideration for the bike computer will ensure you have better data.

One of the common misconceptions is that you need to calculate every part of the tire to make sure the bike computer works as efficiently as it should. However, this is not the case. The tire width might affect various other aspects of your bike’s performance, but it does not have any direct performance effect when it comes to the bike computer.

How Is Tire Width Taken Into Consideration For Bike Computer

So, why did we create this article?

Bike tires are complicated components for your bike and they can have an effect on the performance of your cycling experience and enable you to perform better on certain terrains. The fat tire bike might be slower due to more weight. However, it offers plenty more durability that will help you navigate different rocks.

Why Does Tire Width Matter For Performance?

While the tire width might not have any direct implications for your bike computer, it does affect the performance of your bike. Additionally, tire width is one of the most noticeable features that distinguish bikes from one another. Let’s break down the most popular bike types and look at the width of their tires.

Mountain Bike

The mountain bike is arguably the most popular bike on the market today. According to some recent stats, around 40 million people in the United States participate in mountain bike activities on an annual basis. This can also be translated to mean that more than 10% of people in the US ride their mountain bike at least once per year.

For a mountain bike, the size of the tire is dictated by various factors, which include the rider’s height and the comfort level provided. In general, mountain bike tires have a width that ranges between 2.25″ and 2.6″. Trail bikes might have slightly wider tires, but the tires on an endure bike are slimmer to help reduce the weight.

The mountain bike tire can have more or less width depending on your needs. However, the wider a tire, the heavier it tends to be. A wider tire does not directly affect your bike computer, and you want to consider the circumference before thinking about the width. If more traction is what you need, the wider tire is a good option.

Road Bike 

For road bikes, the tire width can matter more significantly than they do for mountain biking. Depending on your goals, you might want your bike as light as possible, given you comply with the UCI regulations that the bike should not be lighter than 6.8kg (2022) for professional competitions.

Most common road bikes were often fitted with the slimmer 23mm tire, but this has significantly changed in recent years with more road bikes taking the wider tire. These wider tires are around 25mm, with some being 26mm. Different bikes like gravel road bikes will accommodate these bigger tires, but it often depends on what the frame allows you to set up on the bike.

The bike computer often includes a speedometer and this works by following the rotation of the bike and the size of the wheel to determine speed. When it comes to the width of the tire, it does not directly affect your bike computer. However, wider tires are slightly heavier, which could affect cadence. Keep in mind that the cadence measured by the bike computer is not due to the wider tires, but rather the additional weight holding you back.

Cyclocross Bike (Gravel Bike)

If you are looking to compete in unique competitions that often span the globe and allow you to ride on different terrains, while still having plenty of speed, the cyclocross bike is one of the best options for you to consider.

Cyclocross bikes have slightly wider tires, with the range for these tires being between 30-50mm. They do not have a direct effect on your bike computer by any means, but they will also affect the cadence. Keep in mind that the frame on these gravel bikes is designed to accommodate these wider tires, which means you can fit slimmer tires as well.

Unfortunately, the slimmer tires might not hold up sufficiently for certain terrains and when you see the cobble sectors of the Tour de France, you can watch in awe how these professional riders take on these terrains with standard road bikes that have been slightly modified. The width of a cyclocross bike does not affect your bike computer.

Fat Tire Bikes

Many people might consider the fat tire bike to be part of the mountain bike family and you would be 100% correct. However, the enormous size of the tires on the fat tire bike might affect your bike computer due to the slower nature of the motion. When it comes to fat tire bikes, the width of these tires varies from 3.7-inches to 5-inches. 

Fat tire bikes often feature larger tires when compared to most others in terms of diameter and this is where they could affect your bike computer. Since the sizing might not be traditional, you might want to use different calculation methods to ensure you can effectively measure the size of the tire and have it set up on the bike computer.

For the most part, the width of the tire will not have any effect on the bike computer, but it could be tricky to set up a good bike computer due to limited space around the wheel. If you are using a wired bike computer, it is tricky to master the setup. You might want to make some additional space somewhere on the bike to have everything perfectly mounted. 

Other Bikes

While there are numerous other bikes we could add to this list, we could not see the point. It is rare to see a bike computer mounted on the BMX bike, and this often makes it one of the hardest calculations if you plan to do so. Keep in mind that the width of the tire does not have such a big effect and most of the effect will come from the smaller size of the tire.

The same is true for all variations of bikes and you will notice that the width is ignored by many professional shops when they mount the computer. The only effect that it could have is often related to weight.

How Is Tire Width Taken Into Consideration For Bike Computer

The main reason for you visiting this page is that you are probably struggling with setting up your bike computer on your bike and you are looking to make sure that the data tracking is accurate. While the tire width does not directly affect the bike computer, it can have some indirect effects that we will explore. Here is what the tire width can mean for your bike computer:


If you have slim tires on your bike and you ride on gravel roads, your mountain bike computer might not be as effective, but this is not due to the tire width, but rather the durability of the tire. Slim tires lack durability and with constant rattling, they easily shake loose some of the components. It might mean your bike computer can fall off.

Tire Weight

Most modern bike computers offer you a cadence sensor, which is often mounted to the wheel of the bike. The cadence sensor is not affected by the width of the tire, but the weight of your bike will be. A wider tire requires more mass and this will make the bike heavier. One of the downsides to a heavier bike is that the cadence is affected and you might not have the same power.


Wide tires like those you find on fat tire bikes could affect how you set up your bike computer. In general, the setup of a bike computer is pretty standard, but wider tires mean you need to select a different location when it comes to the mounting process. Depending on the frame, you might not have enough room for certain sensors.

How Is Tire Width Taken Into Consideration For Bike Computer Conclusion

While tire width is always something to keep in mind when you are buying a bike and you need to understand that the variations in width can affect your performance and often the speed of the bike. The overall width does not have any bearing on the bike computer directly. Most effects will be indirect and could cause you to make various adaptations.

About Martin

I am Martin, I am the author of this blog. My main interests include cycling. That's why this blog was created. I have always been interested in technology and how bicycles are made, so I built one myself.