DECATHLON

27.5" x 1.90/2.50 Self-Sealing 48 mm Presta Valve Inner Tube

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This inner tube allows you to continue cycling when a conventional inner tube would have gone flat.

27.5x1.90 to 27.5x2.50 self-sealing Schrader valve inner tube. The preventative liquid inside the inner tube instantly repairs punctures.

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Product Features

A photo of the Εσωτερικός σωλήνας Presta Valve 27,5" x 1,90/2,50 αυτοσφραγιζόμενος 48 mm in use

Praline Flavour

27,5" tyres with a cross section of 1.90 to 2.50.Presta valveETRTO 47/64 - 584

Puncture resistance

The liquid in the inner tube seals small punctures (< 3mm).

Lasting air retention

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

Additional Product informations

Composition

Main part

10% Foamed PVC
90% Isobutylene Butyl Isoprene Rubber

How to choose your inner tube

Check all the information indicated on the sidewall of the tyre (diameter and width). For example, 27.5 x 2.00 means a tyre with a 27.5-inch diameter that is 2.00 inches wide.On the tyre sidewall you will also find the dimensions in mm in ETRTO international units.For example, 50-584 means that the tyre is 50mm wide with a 584mm internal diameter (approx. 27x2.00).

Removing an inner tube

Remove the old inner tube using a DECATHLON tyre lever.

Checks to carry out before installing an inner tube

Check the condition of your tyre and replace it if necessary.Make sure no objects are lodged in the tyre.Check the condition of your tyre 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 tyre so that it fits inside the rim.Take care not to pinch the inner tube when fitting.

Mounting the tyre

Start by mounting the tyre onto the wheel on the opposite side to the valve.Finish mounting the tyre at the valve to avoid pinching the inner tube.Never mount your tyre with a screwdriver or a tyre lever, as you risk pinching and puncturing the inner tube.

Inflating the tyre

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

Tip from the pros

To prevent any puncture from pinching and to achieve the best performance, we recommend checking and, if necessary, pumping up your front tyre before each ride.