700x18-25 Inner Tubes x2 - Presta 48mm

€ 2.90

Designed for 700 mm diameter road wheels with an 18 to 25 mm cross section tyre.

More details
SKU: S100 (1620934)
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Size Guide

Available online

Delivery in 3 to 4 days

Product benefits
  1. Compatibility
    700mm tyre and wheel, 18 to 25mm cross section, with Presta valve.
  2. Waterproof
    48mm Presta (or French) valve to retain pressure well.
Product feature
  1. How to choose your inner tube
    Check all the information indicated on the sidewall of the tyre (diameter and width). For example, 700 x 23 means your tyre is 700mm in diameter and 23mm wide. On the sidewall, you will also find the dimensions in mm in international ETRTO measurements. For example: 23-622 means your tyre is 23mm wide with an inner diameter of 700mm (so 700 x 23).
  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
    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.
  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 with 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 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.
  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.
  8. Weight:
    97g each
Product testing
  1. Composition
    Membrane : 100.0% Rubber - Synthetic
  2. Approved by
    Our inner tubes are tested continually by our professional teams, such as the U-19 PRO Racing Team and the MTB Racing Team.
  3. Storage advice
    Carry your inner tubes in a container to protect them from getting punctured (tool drum, original packaging, bag).
  4. Cleaning advice
    To get your wheel size, check the information on the tyre wall. Always carry a spare inner tube and a pump.
  5. Product restrictions
    Take care not to pinch the inner tube when fitting it.
  6. Product catchline
    First price road inner tube with Presta valve. Two at a time is better value
  7. Lab tested
    To guarantee optimal quality, 100% of our inner tubes are inflated for a period of 8 hours
Product reviews
3.93 / 5
59 reviews
47 users recommend this product
Write a review
  • Emergency

    David (United Kingdom)
    Used for 1 week or less
    Exactly what’s needed to avoid a fiddly puncture repair at the roadside
  • Excellent value

    john (United Kingdom)
    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

    Katrina (United Kingdom)
    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.

    Harlow cycle page (United Kingdom)
    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

    jamie (United Kingdom)
    Used for 1 week or less
    Good value for money
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