Find the correct size inner tube for your bike
Which Size Bike Inner Tube Do I Need?
Whether you’ve got a flat or you’re simply preparing for the inevitable, choosing the right bike inner tube is essential for a smooth and safe ride. But with so many sizes and valve types, it can be a little confusing if you’re not sure what to look for.
This guide will walk you through how to check your current tyre, choose the correct valve, and help you find quality options — from affordable Nutrak tubes to premium performance by Vittoria — all available at Freewheel.co.uk.
Step 1: How to Find Your Tyre Size
The easiest way to determine the correct size inner tube is to check the sidewall of your bicycle tyre. You’ll see a number combination such as 700x25c, 26x1.95, 27.5x2.1, or 29x2.3. These numbers tell you two things: the first is the diameter of your wheel, the second is the width of your tyre.
For example, if your tyre says 26x1.95, you’ll need an inner tube made for 26-inch wheels and tyre widths somewhere between 1.75 and 2.1 inches. Inner tubes often fit a range of widths, so you don’t need to match the exact number perfectly — just make sure you stay within the recommended range.
Step 2: Valve Types – Presta or Schrader?
Next, take a look at your current inner tube valve. If it’s wide and similar to what you’d find on a car tyre, it’s a Schrader valve. These are common on mountain bikes and hybrids.
If the valve is slim, tall and has a small locking nut at the top, that’s a Presta valve. These are more commonly found on road bikes and performance wheels. Your bike rim will only accept one type, so double-check before you buy.
Choosing a Bike Inner Tube – Product Examples
Nutrak – Budget-Friendly and Reliable
Nutrak Inner Tube 700C (Presta or Schrader Valve)
This tube is compatible with most standard road tyres, with options of 700x18–25c, 700x25-32c and even 700x35-45c. You can choose between a Presta or Schrader valve, depending on your bike’s rim.
Nutrak Inner Tube 26"
Perfect for leisure mountain bikes, this tube fits 26-inch wheels with a range of widths including 1.75" to 2.1", 1.5" to 2", 2.1" to 2.4" and 4 to 4.3". Both valve types are available.
Vittoria – Premium Quality for Performance Riders
Vittoria Competition Latex 700c Inner Tube
This tube is designed for road cyclists looking for a lightweight option with low rolling resistance. It uses a Presta valve and fits 700c tyres in the ranges 18 to 25c, 25 to 28c and 30 to 38c.
Vittoria Competition Latex MTB Inner Tube
For off-road riding, this latex inner tube delivers both durability and speed. It’s ideal for either 26 or 29-inch mountain bike wheels between 1.7 and 2.3" and uses a Presta valve.
Final Thoughts
To recap, all you need to find the correct bike inner tube is your tyre size (printed on the sidewall) and your valve type (Presta or Schrader). Once you’ve got that information, choosing the right product is simple.
For budget-conscious cyclists, Nutrak tubes provide dependable performance at a great price. If you're after high-end materials and reduced rolling resistance, Vittoria inner tubes are a top-tier option trusted by professionals.
Still unsure? Visit Freewheel’s inner tube collection and explore the full range for every bike and budget.
