20" Schrader Inner Tube - 1.7 to 2.2 Cross-Section

8311089

B'TWIN

Made for kids' bike wheels, 20&quot, in diameter with a 1.7 - 2.2 cross-section.
Schrader valve inner tube (large valve) for 20-inch tyres and wheels.
Sizes guide

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Advantage
Compatibility20" wheels and tyres with a 1.7 to 2.2 cross-section.
WaterproofHigh quality valve that retains pressure.
Warranty2 Years
Technical Information

1
Choosing an inner tube
Write down all visible information from the tyre sidewall (diameter and width). For example, 26 x 2.20 means your tyre is 26 inches in diameter and 2.20 inches wide/. . You will also find the dimensions in mm in international ETRTO measurements. For example, 50-559 means the tyre is 50 mm wide with an inner diameter of 559 mm (approx. 26 x 2.00 inches).
2
Removing an inner tube
Remove the old inner tube using B'Twin tyre levers (ref 8047839).
3
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 rim strip. Even slightly bent rim strips can cause punctures. Check that your rim does not have any other issues that could damage your inner tube.
4
Installing the inner tube
Pre-inflate the inner tube slightly to avoid pinching. Insert the valve, making sure you are using the correct valve for your rims. 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.
5
Mounting the tyre
Start by mounting the tyre from the opposite side of the valve. Finish at the top of the valve to avoid pinching. Never use a screwdriver or tyre lever to mount the tyre or you could pinch the inner tube and puncture it.
6
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 the tyre in correctly positioned as you inflate it.
7
Tip from the pros
To avoid punctures from pinching and for best tyre performance, we recommend that you check your tyres and inflate them to the suggested pressure before every ride.
Information / Concept / Technology
Composition
Material: isobutylene. Weight: 154 g.

Test
Our inner tubes are tested continually by our professional teams, such as the U-19 PRO Racing Team and the MTB Racing Team.

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

Stockage tips
Carry your inner tubes in a container that protects them from perforations (B'Twin carry case, original packaging, etc.).

Maintenance tips
To find out the size of your wheels, check the information printed on the tyre wall. Always carry a spare inner tube and a pump.

Reviews

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Good quality at low cost
Used for 2 to 8 weeks
Bought a pair for my fold up bike and sons BOX. These are superior to the cheap innertubes sold by other shops.
Low cost. Holds air well.
Heavy.
Poor quality
Verified purchase What is a review "Verified purchase" ?

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Used for 2 to 8 weeks
I think maybe on this occasion it would have been better to have paid for a better quality tube
Cheap
Very poor quality meaning prone to punctured
Response of the brand
Dear Sir,
I'm sorry to read that you have had a puncture.
Regards,
Peter Lazarus UK Market Manager DECATHLON
Andre not found this answer helpful
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