• Bicycle inner tube

    Explore our full selection of bicycle inner tubes to outfit, repair, or maintain your bike. From small kid-size wheels to larger diameters. Whether you ride a kids’ bike, BMX, mountain bike, hybrid/commuter, city bike, folding bike, or cargo bike, you’ll find a compatible tube here: simply match the size printed on your tire sidewall, then browse the collection.

A reliable inner tube is the foundation for worry-free riding

An inner tube is the “invisible” part that makes a real difference every day: it holds air pressure, improves comfort, supports efficiency, and gives you peace of mind. This collection brings together all of our bicycle inner tubes, covering a wide range of diameters and widths so you can quickly find the right match—whether you’re dealing with a flat, a slow leak, or you’re replacing a tube proactively.

What bikes and riding styles is this for?

Depending on your wheel size and tire width, you’ll find tubes here for many bikes and use cases:

  • Kids’ bikes (12", 14", 16", 18"): balance bikes, learning bikes, small kids’ MTBs.
  • BMX (often 20"): street riding, pump track, casual riding.
  • Mountain bikes: classic and modern sizes (e.g., 26", 27.5", 29") plus wider sections depending on your setup.
  • Hybrid / commuter / city bikes: daily riding, trekking, comfort-focused setups.
  • Folding bikes: depending on the model (often 16" to 20").
  • Cargo / utility bikes: some builds take larger-volume tire sections.
  • Specialty wheels using “bike-style” sizes (e.g., trailers): as long as the tire size and valve match exactly.

Important: compatibility depends first and foremost on the tire/rim size. When in doubt, always rely on the markings printed on your tire.

How to be sure you have the right size: inches and ETRTO

To avoid mistakes, check the size directly on your tire sidewall:

  • In inches (e.g., 20x1.75, 26x1.95, 29x2.25)
  • Or in ETRTO (e.g., 47-406, 50-559, 57-622)

ETRTO is often the most reliable: the first number is the tire width (in mm) and the second is the rim’s internal bead seat diameter (in mm). Example: 47-406 corresponds roughly to a 20" x 1.75 setup.

Sizes in this collection (quick reference)

This page includes inner tubes covering many common dimensions, including:

  • Small diameters: 12", 14", 16", 17", 18"
  • Very common sizes: 20", 22", 24", 25", 26"
  • Large wheels: 27", 27.5" (650B), 28" (700C), 29"
  • Special sizes depending on setups: 30.5", 32", 36"

You’ll also find many widths (tire sections) within the same diameter. The goal: make sure your tire falls within the tube’s compatibility range.

Width: choose a range that covers your tire

Beyond diameter, confirm the width (section). An inner tube typically fits a range (for example 1.75–2.125). If your tire is 2.00, choose a tube whose range includes 2.00. Too narrow or too wide can lead to difficult installation, premature wear, or less stable air retention.

Valves: Presta, Schrader, Dunlop… which one should you choose?

Your valve must match your rim and how you inflate (home pump, gas station, etc.):

  • Presta valve (SV): slim; common on road bikes, gravel bikes, and many MTBs.
  • Schrader valve (AV): wider and sturdy; similar to car valves; convenient for air at gas stations; common on MTBs and kids’ bikes.
  • Dunlop valve (DV): less common in the U.S., but still found on some city/commuter bikes.

Installation tips to prevent repeat flats

  • Check the inside of the tire (thorn, glass, staple) before reinstalling.
  • Inspect your rim tape: if it’s damaged, it can cause repeated punctures.
  • Inflate to the recommended pressure: too low = pinch flats; too high = harsh ride and extra stress.
  • Before mounting, add a little air to the tube and avoid pinching it while seating the tire.

Why buy your inner tube here?

Because it saves you time: broad size coverage, clear sizing cues (inches/ETRTO), and practical guidance so you can pick the right tube on the first try. Browse the collection, filter by size, and get back on the road quickly—with confidence.

Inner tube families by wheel diameter

Looking for a tube for a specific size? Check our diameter-based guides below: compatibility, valve types (Presta, Schrader, Dunlop), and quick answers to the most common questions so you can choose the right tube fast.

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