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 |
Mike
Good tubes, but a bit tricky to install. Once on, they perform well and withstand rough trails without punctures.
Kate
The best inner tubes I’ve used so far. They provide smooth rides, and the construction seems robust. A definite must-try if you are tired of frequent punctures. Will be purchasing again.
John
Great quality and fits perfectly.
Alice
These inner tubes are fantastic! Easy to install and durable. No flats after multiple rides. Highly recommend for any cyclist needing reliable replacements.
Alice G.
Perfect fit for my bike. Holds air well, no complaints.
Bob S.
Good quality tubes, but a bit tricky to install.
Jamie L.
Reliable tubes. They fit perfectly, and I haven’t had any issues with flats since switching. Durable and worth the price.
Sam R.
Good value for the money. A bit tough to put on, but they work fine once installed.
Alex T.
Great quality and easy to install! Seamless ride every time.
Sam
Good quality, but slightly tricky to fit. Holds air well.