700x18-25 Inner Tube Twin-Pack - Presta Valve 48 mm



Made for a standard flat road bike 700 mm diameter wheel fitted with an 18-25 mm wide tyre.
An entry level inner tube with a Presta valve.


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CompatibilityTyre and flat wheel with a 700 mm diameter and 18-25 mm wide with Presta valve.
Waterproof48 mm Presta valve that holds the pressure in.
Warranty2 Years
Technical Informations

How to choose your inner tube
Check all the information indicated on the sidewall of the tyre (diameter and width). For example, 700x23 means that the tyre has a diameter of 700 mm and is 23 mm wide. On the sidewall of the tyre you will also find the dimensions in mm expressed in ETRTO international units. For example: 23-622 means a tyre that is 23 mm wide and with a 700 mm inner diameter (700x23).
Removing an inner tube
Remove the used inner tube using B'Twin tyre levers (item code 8047839).
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.
Fitting your inner tube
Slightly pre-inflate the inner tube to avoid any risk of it being pinched. 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 using 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 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.
Tip from the pros
To avoid punctures due to the inner tube being pinched, and to get the best performance out of your tyre, we recommend checking your tyre pressure and inflating it if necessary before each ride.
Information / Concept / Technology
Membrane : 100.0% Rubber - Synthetic

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

Test Product
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 punctures (tool case, original packaging, bag, etc.).

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


Sort by:
Burst again and again and again oh and again
Used for 1 week or less
I purchased 2 sets of these (So 4 tubes in total), each time I pumped them to the required PSI as stated BY decthalon on their products and each time the tube has burst after anything ranging from 20 minutes to 3 days. I have checked the tyre wall, tape etc and there are no flints etc. I initially thought my decathlon pump was faulty (gauge showing the wrong psi) but I am now 100% certain it is down to these poor quality tubes. Save yourself the hassle and do not buy these not matter how cheap they are.
Response of the brand
Thank you for your feedback regarding these innertubes. If you believe they are faulty please feel free to return them to us for a refund or exchange. It's worth checking if they burst in the same place. It is a torn seam. Is it a simple hole. Does it happen on the front and rear.
Peter, Cycling Manager, DECATHLON
Simon not found this answer helpful
Very, very poor product.
Used for 1 week or less
I've twice bought this product and have had a 75% failure rate, do not buy it...
Response of the brand
Dear Sir,
Thank you for taking the time to post a review of these innertubes. Could you kindly reply to me with more information as I wish to forward this on to the product team in charge of this item at Decathlon Cycles. Was it a valve issue, tear on the seam or a puncture?
I look forward to hearing from you,
Peter, Cycling Manager, DECATHLON
Andrew found this answer helpful
Used for 1 week or less
Exactly what’s needed to avoid a fiddly puncture repair at the roadside
Excellent value
Used for 2 to 8 weeks
Inner tubes are much of a muchness. Why pay more when you can get these really good inner tubes at a fantastic price
Good value
Used for 7 to 12 months
Very good price. Perfect for lower mileage commute to work. Hold the pressure fairly well.
700 Inner Tube Twin Pack.
Used for 1 week or less
Cheaper to buy two than a single, excellent value for money. Was recommended by Harlow Cycle Page
inner tubes
Good value for money
Acceptable Quality at Exceptional Price
Used for More than 1 year
These inner tubes do the job just fine, I've bought inner tubes from Decathlon for years because they fit my Decathlon road bike perfectly.
Best buy
Used for 2 to 8 weeks
Excellent value good price and very good customer service will use them again
Mail order innertubes
Used for 2 to 8 weeks
Inner tubes were good value for money, but the mail order service is terrable
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