26 Self-Repairing Inner Tube

8009080

B'TWIN

Made for preventing punctures. Allows you to continue cycling when a conventional inner tube would have gone flat.
Self-repairing Schrader valve 26x1.7 to 26x2.2 inner tube. The preventive sealant inside the inner tube automatically repairs punctures.

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Advantage
Compatibility26" Schrader valve (large valve) tyres and wheels.
Puncture resistanceThe liquid in the inner tube seals small punctures (< 3 mm).
WaterproofThe hole is sealed while you ride.
Waranty2 Years
Technical Information

1
How to choose your inner tube
Check the information indicated on the sidewall of the tyre (diameter and width). For example, 26 x 2.20 means your tyre is 26 inches in diameter and 2.20 inches in width. On the sidewall, 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 (or 26 x 2.00).
2
Removing an inner tube
Remove the used inner tube using B'Twin tyre levers (item code 8047839).
3
What to check before installing your new 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.
4
Fitting your 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 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 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 using a screwdriver or a tyre lever as you risk pinching and puncturing the inner tube.
6
Inflating the tyre
Inflate your tyre carefully to the pressure recommended by the manufacturer (visible on the sidewall of the tyre in PSI or bars, 1 bars = 14.51 PSI). Regularly check that your tyre is in the correct position as you inflate it.
7
Tip from the pros
To avoid punctures caused by pinching and get more out of your tyres, we recommend that you check your tyre pressure before each ride and pump them up if necessary.
Information / Concept / Technologie
Composition
Membrane : 100.0% Rubber - Isobutylene Isoprene Rubber (IIR) - Butyl

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 to protect them from getting punctured (tool drum, original packaging, etc.).

Maintenance tips
Wheel size is printed on the sidewall of your tyre. Always carry a spare inner tube and a pump.

Reviews

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Failed to self-seal
Used for 1 week or less
Punctured on only my second use (on not particularly rough roads/tracks). Self repair failed to work and I had to walk home and resort to the good old puncture repair kit.
Response of the brand
I'm sorry to read that the innertube did not seal itself. Holes made by thorns, small pieces of flint or small pinch flats should seal up with no issue as long as you keep on riding (important not to stop riding), the motion of the wheels spinning plugs the hole. If you continued to ride and the puncture persisted, the hole may have been too large.
If you believe the item to be faulty then please feel free to return it to us for a refund or an exchange.
Regards,
Peter Lazarus, National Cycling Manager, DECATHLON
Great tube at an even better price
Used for 2 to 8 weeks
So far so good, great price and two weeks puncture free and counting
Bad quality valve
Used for 1 week or less
I used it for the first time and as soon as I left home, after 5 minutes cycling the tyre was flat. I checked it and there did not seem to be any problem so I inflated the tyre again but the same happened. I checked the valve and it tourns aout that after pumping air, when I pressed a little bit with my hand I could hear air coming out. This is not fine, I read some comments of people having problems with the valve of this product. I think perhaps some are OK but I would not risk to but it knowing that it is a recurrent problem.
Unfortunately, it's been more than a month I bought it so I don;t think I can claim my money back but hopefully it will help other people to take a good decision.
Response of the brand
Thank you for taking the time to give us your feedback regarding this innertube.
If you feel that the product does not perform as well as it should, then you are able to return the item to us.
I will make sure that you comments are forwarded on to the team in charge of this product at b'Twin.
Regards,
Peter Lazarus, National Cycling Manager, DECATHLON
Inner tube
Used for 2 to 8 weeks
Self sealing inner tube, working great
Nice idea...
Used for 2 to 8 weeks
So I thought I would replace my old inner tubes with self sealing ones.... nice idea.
So first outing, great ride out of about 10 miles just to check everything OK.
Second outing my front tyre was a bit soft so when to inflate... unfortunately it appears the valve has broken and the sealant has filled up the valve and sealed it completely... unable to put any air in but on the upside will not deflate any more.
Downside is .... in order to fit a new innertube I have had to slash the self healing one to get it out ... so the incentive lasted one ride - not really value for money then.
Response of the brand
It sounds as if the valve is blocked. It can occasionally happen to self sealing innertubes from all brands. A valve can be removed and cleaned and replaced. Alternatively you can return it to us for a replacement.
Regards,
Peter Lazarus UK Cycling Market Manager DECATHLON
Andrew not found this answer helpful
it works
Used for 2 to 8 weeks
got flat on my way to work but still made it all the way to my work-place. I left my bike for a couple of hrs and when I got back to check on it the tyre was completley flat. I took the wheel off for repair but then I decided to pump some air in and see how it holds. At first it was losing air but then after giving it a spin it sealed itself :) Just to make sure I left it for a few more hours to see if it was going to be fine and it was. Thus there was no need to fix my tyre (inner tube) and I got back home with no issue.
does not work at all
Used for 2 to 8 weeks
next to useless the bike guy at the shop said it would work fine yet i have a flat tire. avoid at all cost
Easy to install
Completely Useless
Response of the brand
I'm sorry to read that you have a flat tyre.
I'm very interested to hear more about your puncture and why it did not remain inflated when you were riding. I want to feed this back to b'Twin as it will be very useful information to understand what went wrong. Would you mind replying to me?
Regards,
Peter Lazarus UK Cycling Market Manager DECATHLON
Daniel found this answer helpful
not so self sealing
Used for 1 week or less
I bought these after a spate of punctures and with a new tyre, set off confident on my commute, 15 miles in and a saftey pin had gone through the side wall. Never mind I thought i'll pull it out and my brand new self sealing inner tube can shine, spin the wheel still going down , put more air in still going down spin the wheel with more air still no joy spent as long trying to get it to seal as it did to change. Got home and part inflated it and the goo bubbled out of a small hole I left it hanging with the hole at the bottom hoping it might work. After a week and still not sealed I binned it, complete waste of time and money.
it fitted the rim
it didn't work
Response of the brand
Hi Darren,

Thank you for taking your time to review the self healing inner tube.
It is strange that the sealant did not work as it should, you have done everything correct in regards to keeping the wheel spinning etc to get the sealant into the hole. The only thing I can think of is that the hole was bigger than the 3mm that it will seal up to. I have been using the road version on my bike and it worked well after riding over some glass.

I'd return the tube to your local store for an exchange/refund as it has not done the job it is designed for.

Rob Basnett b'Twin Product Expert DECATHLON
26X1.7-2.2 ATC INNER TUBE
Used for More than 1 year
Two inner tubes in a year - 1st one replaced after bad puncture ( which auto filled so I was able to cycle 5 miles to get home) 2nd tube I still have in and nice to know you do not need to stress about getting puncture. Recently bought two tubes for my son who has had numerous punctures- been puncture free for two months
Easy to fit
None
Great customer service
Used for 2 to 8 weeks
The staff in the cycle department are always helpful and happy to assist
Staff were very helpful in changing the tyre
Nothing

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