Weighing in at just 39 grams, the Tubolito S-MTB is the perfect spare tube for riders who demand performance without the bulk. Engineered for mountain biking, it’s not only ultra-light but also offers better rolling resistance than standard butyl tubes—giving you an edge when every watt counts. Tough, compact, and reliable, the S-MTB is the smart choice for those who want to ride further, faster, and worry-free.
Built tough for demanding terrain, it’s also fully compatible with tubeless setups—residues of tubeless sealant are no problem.
Small in size. Big on performance. S-TUBO-MTB.
All Tubolitos are made from the high-tech plastic TPU. TPU has been used successfully in the industry for many years and is valued for its outstanding performance.
The founders of Tubolito, Ákos Kertész and Christian Lembacher, have been working with TPU since before founding Tubolito and have built up extensive expertise over the years.
The combination of TPU with a patented manufacturing process makes it possible for Tubolitos to be small, lightweight, and at the same time puncture-resistant. These properties can be optimized depending on what is required from the Tubolito.
| Weight | 43 G |
|---|---|
| Tire Width | 1.8″ – 2.5″ |
| Valve | 42MM SV Orange |
| Weight | 39 G |
|---|---|
| Tire Width | 1.8″ – 2.5″ |
| Valve | 42MM SV Orange |
Tubo: The perfect tube for everyday use – more robust and lighter than conventional butyl tubes. Combining performance and durability, it’s the smart upgrade for any bike.
S-Tubo: Light as a feather and compact due to reduced wall thickness – extremely low rolling resistance. Perfect as a spare tube. S-Tubos achieve very similar results in the needle puncture test as much heavier rubber tubes.
X-Tubo: No Flat Tube – extremely durable. Designed for everyday riding with maximum resistance to punctures and includes a 1-year replacement policy for registered X-Tubos on our website.
Standard pump heads require at least 15 mm of valve to remain above the rim for proper inflation.
To choose the correct valve length, use this simple rule:
Valve length – Rim height ≥ 15 mm
So, subtract your rim height (in mm) from the valve length (in mm). If the result is 15 mm or more, the valve will work with standard pump heads.
The maximum and minimum air pressure for using Tubolitos depends on the tire being used. Please always follow the pressure specifications provided on the tire.
Important: Tubolitos must not be inflated to more than 0.5 bar / 7 psi when outside the tire. Overinflating them outside the tire can lead to deformation and damage.
We have had the rolling resistance of our products tested by an independent body. The following graphs show the results:
As the graph below indicates, Tubos have similar characteristics concerning air retention as rubber tubes.
Yes — if a puncture occurs, you can easily repair the inner tube using our specially developed Tubo-Patch Kit, designed specifically for TPU tubes.
Important: Repair kits made for butyl rubber tubes are not compatible with Tubolitos.
Our story began with research into a durable material for smartphone speaker membranes — one that was light, thin, and extremely resilient.
Technicians and passionate mountain bikers Christian Lembacher and Akos Kertesz quickly realized that the newly developed high-tech material TPU was perfectly suited for bicycle inner tubes — a true revolution in the cycling world, where tubes had previously only been made of rubber or latex.
Our mission has always been to create bicycle inner tubes that are not only lightweight and robust, but also significantly enhance the performance and safety of bicycles.
By submitting your data, you agree to our terms and conditions and terms of use. You can easily unsubscribe from the newsletter at any time. Click here for our privacy policy.
Site design by Fargo Circle. Built by TRWD
In case we ask you to submit product information about your Tubolito for quality review purposes, please send us the following two codes.
Step 1. Finding the Product Code of your Tubolito:
The product code is a 9 digit code next to the Tubolito logo on your tube.
In the example picture: 907111206
Step 2. Finding the Batch Code of your Tubolito:
The batch code is made up of 4 or 5 digits and a letter and is printed right underneath the name of your Tubolito.
In the example picture: 19465A
Thank you for your help and we hope you continue to enjoy using
