The advantages of using tubeless tires on mountain bikes

What does tubeless mean and how does it work

The term tubeless literally means “without an inner tube.” In this system, the tire is mounted directly onto the rim and seals the air hermetically, eliminating the need for an inner tube.

What is the difference between a tubeless wheel and one with an inner tube

In a traditional setup, the inner tube is responsible for maintaining the pressure. In the tubeless system, the tire and rim themselves fulfill this function with the help of sealing tape, a specific valve, and sealant fluid that seals any leak or small hole.

Components of the tubeless system

• Tubeless Ready rim (compatible and sealed).
  
  

• Sealing tape, which covers the spoke holes.
  
  

• Tubeless valve, for inflating and maintaining pressure.
  
  

• Compatible tire (Tubeless Ready or UST).
  
  

• Sealant fluid, responsible for repairing punctures while riding.
  
  

How to install a tubeless system on an MTB

1. Place the sealing tape on the rim, thoroughly covering the entire inner surface.
   
   

2. Insert the tubeless valve and tighten it with the outer nut.
   
   

3. Mount the compatible tire onto the rim.
   
   

4. Add the appropriate amount of sealant fluid (between 60 and 100 ml per wheel).
   
   

5. Inflate with a high-volume pump or compressor until the tire seats.
   
   

6. Spin the wheel to distribute the sealant evenly.
   
   

Advantages of the tubeless system on mountain bikes

The tubeless system has become the standard on modern MTBs, thanks to a unique combination of reliability, performance, and comfort.

1. Reduction of punctures

The sealant liquid automatically seals small cuts or punctures, preventing you from having to stop and repair. Also, since there is no tube, pinch flats disappear which occur when hitting a rock or root with low pressure.

2. More grip and traction

By being able to ride with lower pressures, the tire adapts better to the terrain, offering more traction on climbs, corners, and descents. This improves the overall control of the bike, especially on loose or wet terrain.

3. More comfort and control on the terrain

Lower inflation pressure increases the contact surface with the ground, better absorbing irregularities. The result is a smoother and more stable ride, especially on long or technical routes.

4. Lower total wheel weight

By eliminating the tube, you reduce between 100 and 200 grams per wheel. This translates into better acceleration and greater efficiency on climbs.

5. Simple maintenance and quick repairs

In case of a leak, you just need to add more sealant or apply a specific patch. In most cases, it isn't even necessary to remove the wheel.

Disadvantages and limitations of the tubeless system

Although it offers clear advantages, tubeless also has some points to consider before converting.

1. More delicate installation

The initial installation can be more technical. It requires compatible rims and tires, and sometimes a compressor to get the tire to seat correctly on the rim.

2. Gradual air loss

Over time, the system can lose air slowly if the valves are not properly tightened or if the sealing tape deteriorates. A periodic check easily solves this problem.

3. Periodic maintenance of the sealant

The sealant dries out over time, so it is advisable to check it every 4 to 6 months. An insufficient level reduces the ability to seal punctures and maintain pressure.

Comparison: wheels with tube vs tubeless

Quick conclusion: The tubeless system offers more grip, control, and reliability, in exchange for a bit more maintenance.

How to tubeless your wheels step by step

1. Check the compatibility of the rims (they must be “Tubeless Ready”).
   
   

2. Clean the rim thoroughly before installing the sealing tape.
   
   

3. Place the tape and the tubeless valve precisely.
   
   

4. Mount the tire and add the sealant.
   
   

5. Inflate with a compressor until the tire seats.
   
   

6. Spin the wheel and move it to distribute the sealant completely.
   
   

With practice, this process takes less than 30 minutes and offers a long-lasting result.

Maintenance and care tips for the tubeless system

• Check the sealant level every 3-4 months, especially in warm climates.
  
  

• Clean valves and edges of the rim at every tire change.
  
  

• Avoid using direct pressure water on the valves or bushings.
  
  

• Replace the sealing tape if you notice leaks or bubbles.
  
  

• If you do long rides, always carry a plug kit in case the sealant doesn't cover a large cut.
  
  

Tubeless wheels represent one of the most remarkable and cost-effective upgrades for any modern mountain bike.

They offer:

• Fewer punctures, even on aggressive terrain.
  
  

• Greater traction and comfort, thanks to lower pressures.
  
  

• Simple maintenance with regular checks.
  
  

Although they require a more careful initial installation, the benefits in performance, comfort, and reliability make it worth the change for most mountain bikers.