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B'TWIN

20" Schrader inner tube that's easy to inflate.

  • 15 - Cycling Cycling - 20
  • 15 - Cycling Cycling - 20
  • 15 - Cycling Cycling - 20
  • 15 - Cycling Cycling - 20
  • 15 - Cycling Cycling - 20
Reference : 8311089
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15 - Cycling

B'TWIN 20" 1.7 To 2.2 Schrader Valve Inner Tube

B'TWIN
4.4/5
4.4/5
(1054)
Decathlon
until £2.49 -%

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Designed for 20-inch tyres and wheels (junior bikes). Schrader inner tube (large valve) for 20-inch tyres and wheels.

PRODUCT BENEFITS

Compatibility 20" tyres & wheels with a cross-section ranging from 1.7- 2.2.ETRTO 44/57 - 406
Waterproof Optimised composition to ensure your inner tube has a good seal.

TECHNICAL INFORMATION

How to choose an inner tube

Check the information indicated on the sidewall of the tyre (diameter and width). For example, 20 x 2.10 means that the tyre is 20 inches in diameter and 2.10 inches wide.
On the tyre sidewall you will also find the dimensions in mm in ETRTO international units. For example, 50-406 means a tyre that is 50mm wide and has an inner diameter of 406mm (approx. 20 x 2.00).

Removing an inner tube

Remove the used inner tube using B'Twin tyre levers (ref 8047839).

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.

Weight:

148g

Complementary products

You'll need a tyre lever (reference 8047839) to change your inner tube.
If you want to repair a punctured inner tube, you can use repair patches (reference 8563156) or self-adhesive patches (reference 8562489)

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COMPOSITION / ADVICE

Composition
Main fabric
90.00% Rubber - Isobutylene Isoprene Rubber (IIR) - Butyl, 10.00% Brass
Stock advice Carry your inner tubes in a container to protect them from getting punctured (B'Twin carry case, original packaging, etc.).
Restricted use : Take care not to pinch the inner tube when mounting it on.

OUR COMMITMENTS

Test Product To guarantee optimal quality, 100% of our inner tubes are inflated for a period of 8 hours.
Guarantee : 2 Years

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