Do I need a Presta or Schrader valve?

Check the valve hole in your rim and the valve on the old tube. Presta valves are narrow and common on road and performance bikes. Schrader valves are wider, like car valves, and common on many city, MTB, kids and utility bikes.

Can one inner tube fit several tyre sizes?

Yes. Many inner tubes cover a range, such as several 700C or 26 inch widths. The safest check is whether your tyre's ETRTO width and diameter fall within the tube's stated range.

INNERTUBES

Q: How do I choose the right bike inner tube size?

Match the ETRTO marking printed on the tyre sidewall first. The first number is the tyre width in millimetres and the second number is the rim diameter, for example 37-622. Then choose an inner tube whose printed size range includes that marking.

Find the right inner tube by size, valve and compatibility. Real stock, fast dispatch from EU stock.

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ETRTO sizes

Inner tube size guide

Choose bike inner tubes by tyre marking, ETRTO and valve

Start with the size printed on your tyre sidewall. The ETRTO code, such as 37-622, is the most reliable match: the first number is tyre width in millimetres and the second is rim diameter. Then choose an inner tube whose size range includes that ETRTO and whose valve matches your rim.

700C / 622 tubesFor many road, gravel, hybrid and city tyres. Check both width range and valve length before ordering.20 inch tubesCommon on folding bikes, BMX, kids bikes and cargo bikes. For fat bikes, check the 100-406 guide before ordering.27.5 / 650B tubesUse the ETRTO diameter 584 and choose a tube range wide enough for your tyre, including MTB widths.29 inch tubesFor 622 MTB tyres with larger widths. Check Presta or Schrader valve and rim valve-hole size.

Presta or Schrader?

Presta valves are narrow and common on road, gravel and performance bikes. Schrader valves are wider, like car valves, and are common on many city, MTB, kids and utility bikes. If your rim has a narrow valve hole, do not force a Schrader valve into it.

Width range matters

A tube can fit several tyre widths, but it must cover your tyre's printed range. For example, a tube marked for 700x35–43C is not the right choice for a much narrower road tyre or a wide 29x2.25 MTB tyre. Wide 24 inch tyres need the same care: compare the 24x3 / 76-507 guide before choosing a 24x2.60/3.00 tube.

Unsure about fit?

Send us the tyre marking, wheel size and valve type before ordering. For puncture prevention, also compare tyre protection and repair products and solid / puncture-resistant tyre options.

Search by exact marking

If the tyre says 14 inch, 22 inch or an old French size, use the closest tube hub first, then confirm the ETRTO range printed on the tube box. Useful routes include 14 inch tubes, 22 inch tubes and the 400x35A / 37-340 guide.

650B, 27.5 and 29er tubes

The rim diameter is the anchor: 650B and 27.5 tyres use ETRTO 584, while many 29er tyres use 622. For wide 650B/27.5 routes, compare the 650x52B / 52-584 guide before choosing a 40–62 mm tube range.

Tyre guide before tube guess

Commercial tyre searches such as 28x2 / 50-622, 24x3 / 76-507 or 400x35A often lead to a tube purchase. Read the size guide first when the old sidewall is unclear, then return to this category for the matching valve and range.

362inner tube products available in this category

Popular size routes: 16 inch, 100-406 fat bike tubes, 24 inch, 24x3 / 76-507 tyres, 26 inch, 650 tubes and all inner tubes.

Read the tyre size guide