Ensure comfortable riding everywhere
With the Threo inner tubes, any road will feel smoother. Your bike's performance will skyrocket, making each journey enjoyable. They offer superior puncture resistance, saving you time and money.
Shock absorption
You can safely cycle even on rough terrains. These tubes significantly reduce the impact of bumps on the road, creating cushioning effect. They also protect your bike's tyres and rims from possible damage.


High quality
Our tubes are made with premium materials that guarantee durability. They will surely stand the test of time, serving you for many years.
Air retention
The Threo tubes will keep your tyres inflated for an extended time. They eliminate the need for frequent pumping, adding convenience to your trips.

Size guide

- HOW TO MEASURE THE CORRECT TUBE SIZE:
- Measure the diameter and width of your tire or check the numbers marked on its size.
Tube Size | Tire Diameter | Tire Width | ||
---|---|---|---|---|
cm | inch | cm | inch | |
20x1.25 | 51 | 20 | 3.2-3.8 | 1.25-1.5 |
20x1.5 | 51 | 20 | 3.8-4.5 | 1.5-1.75 |
20x1.75 | 51 | 20 | 4.5-5.4 | 1.75-2.125 |
26x1.5 | 66 | 26 | 3.8-4.5 | 1.5-1.75 |
26x1.9 | 66 | 26 | 4.8-5.8 | 1.9-2.3 |
27.5x1.5 | 70 | 27.5 | 3.8-4.5 | 1.5-1.75 |
27.5x1.9 | 70 | 27.5 | 4.8-5.8 | 1.9-2.3 |
29x1.9 | 74 | 29 | 4.8-5.8 | 1.9-2.3 |
700x23 | 74 | 29 | 2.3-2.5 | 0.9-0.98 |
700x28 | 74 | 29 | 2.8-3.2 | 1.1-1.25 |
700x35 | 74 | 29 | 3.5-4.3 | 1.38-1.69 |

- Determine the suitable valve type by checking the size of the rim hole. The length of the valve should be 0.8’’ (2 cm) longer than the thickness of the rim.

- Select the appropriate valve type and valve height according to the size chart below.
Tube Size | Valve Size | Valve Type |
---|---|---|
20x1.25 | 48 | F/V |
60 | F/V | |
20x1.5 | 32 | A/V |
36 | F/V | |
20x1.75 | 48 | A/V |
26x1.5 | 32 | A/V |
36 | F/V | |
48 | F/V, A/V | |
26x1.9 | 32 | A/V |
36 | F/V | |
48 | A/V | |
27.5x1.5 | 32 | A/V |
27.5x1.9 | 32 | A/V |
36 | F/V | |
48 | F/V, A/V | |
29x1.9 | 32 | A/V |
36 | F/V | |
48 | F/V, A/V | |
700x23 | 48 | F/V |
60 | F/V | |
80 | F/V | |
700x28 | 48 | F/V, A/V |
700x35 | 48 | F/V |
Jenna
Extremely durable inner tubes, survived a rough trail without any issues. They hold air very well and feel sturdy. Installation was straightforward, and they fit perfectly on my wheels. Definitely exceeded my expectations, will buy again!
Alex
Perfect fit and easy to install.
Alex
These tubes are great! Easy to install, durable, and perfectly priced. I have ridden several hundred miles with them, and they are holding up excellently. Highly recommend for anyone looking to replace their bicycle tubes.
Sam
Good quality but needed a bit more effort to fit.
Michael
These inner tubes are fantastic! They were easy to install and have held up wonderfully on both rough and smooth terrain. leaks, and the durability is clear. A must-buy for any cyclist looking for a reliable replacement.
Alicia
Great quality, easy to install. Perfect!
John
I’ve replaced my old tubes with these, and now my rides feel smoother and more reliable. No more unexpected flats!
Samantha
Fantastic product, will purchase again!
Taylor
Top-notch product, will buy again.
Jordan
Excellent durability and easy to install!