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Btwin 26" x 1.2-1.5" 48mm Presta Valve Inner Tube

Sale price: $3.00 Regular price: $4.99

26x1.20 to 26x1.50 inner tube with 48 mm Presta valve.

Color: Select a color
Size: Select a size
Sale price: $3.00 Regular price: $4.99

Free shipping over $49

Final Sale: No returns or exchanges

See our return rules

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8298286

Product Videos

Product Features

A photo of the Btwin 26" x 1.2-1.5" 48mm Presta Valve Inner Tube in use

Btwin 26" x 1.2-1.5" 48mm Presta Valve Inner Tube | This inner tube is compatible with 26" diameter tires, with a cross-section ranging from 1.20 to 1.50 with a 48 mm Presta valve.

26x1.20 to 26x1.50 inner tube with 48 mm Presta valve.


26” tires with 1.2 to 1.5 cross section.ETRTO 30/38 - 559


Optimized composition to ensure your inner tube has a good seal.

Questions & Answers

Product Customer Reviews

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Btwin 26
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Good product

Good product

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Product evaluation.

Good afternoon, the product meets expectations.

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26" camera

It fulfills its function.

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Good value for money…

Good value for money for this low priced product

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inner tube 26

As per description, classic 26 tube for smaller sections (example: mtb that mounts road wheels). The Presta valve is the thinnest one.

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Very good product compliant…

Very good product that meets my needs

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Very good product quality, excellent compatibility

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26" 1.2-1.5 inner tube with Presta valve

good product at a low price.

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Very good

Price ok and I would say functional. If you're not a maniac I'm the best

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Great for tires...

Perfect for slick tires in 26 inches

very resistant

very resistant

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Excellent, taken for another citybike

Excellent hold

Item in stock for…

Item in stock for possible puncture

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Additional Product Information


Membrane: 90.0% Synthetic Rubber, 10.0% Brass

How to choose your inner tube

Check the information indicated on the sidewall of the tire (diameter and width). For example, 26x1.40 means that the tire is 26 inches in diameter and 1.40 inches wide.On the tire sidewall, you will also find the dimensions in mm in ETRTO international units.For example, 38-559 means that the tire is 38 mm wide with a 559 mm internal diameter (approx. 26x1.50).

Removing an inner tube

Remove the old inner tube using B'Twin tire levers

Checks to carry out before installing an inner tube

Check the condition of your tire and replace it if necessary. Make sure no objects are lodged in the tire.Check the condition of your tire rim strip.A rim strip that is even slightly bent can cause punctures.Check that your rim does not have any other issues that could damage your inner tube

Mounting the inner tube

Watch our video before you start.Pre-inflate the inner tube slightly to avoid pinching.Insert the valve, making sure you are using the correct valve for your rim.Put the inner tube entirely inside the tire so that it fits inside the rim.Take care not to pinch the inner tube when fitting.

Mounting the tire

Start mounting the tire at the valve.Finish mounting the tire at the valve to avoid pinching the inner tube.Never mount your tire with a screwdriver or a tire lever, as you risk pinching and puncturing the inner tube.

Inflating the tire

Inflate your tire carefully, to the pressure recommended by the manufacturer (visible on the tire sidewall in PSI or bars, 1 bar = 14.51 PSI).Regularly check that your tire is in the correct position as you inflate it.

Tip from the pros

To avoid punctures from pinching and for best tire performance, we recommend that you check your tires and inflate them to the suggested pressure before every ride.


5.1 oz

Product testing

To guarantee optimal quality, 100% of our inner tubes are inflated for a period of 8 hours.

Storage instructions

Carry your inner tubes in a container to protect them from getting punctured (tool drum, original packaging…).




California Prop65 WARNING: This product can expose you to chemicals including Lead, which is known by the State of California to cause cancer. For more information, go to

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