Bicycle Tire Tube Size Chart

To convert tire tube sizes from one notation to another it is necessary to use the chart published by the iso available at any reputable bike shop.

Bicycle tire tube size chart. This is to allow the tube to expand to the correct size for your tires and can range from as narrow as an inch right up to a tire width of 2 5 or greater. Dale mccabe got the tire tube as you john just replaced them with700x35 37. A guide to bike tire sizes traditional sizing systems. Mountain bike tyre sizes are usually stated in inches.

The traditional sizing systems were based on the measurement of the outside of diameter of the tire so it would be listed as diameter x width. The standard is called the iso 5775 and if your shop doesn t have the chart available it is published at the websites of the iso and the etrto. For an easy how to guide have a quick watch of this video. Find out the cause of the flat e g.

Replacing a tube should then take 45mins max to complete. Because the stated tire width is usually slightly larger than the actual tire and because the tube stretches tubes close in width serve just as well. Each tire size is very variable depending on the type of bicycle tire you want and depending on what type of bike you have. Take off the bike wheel.

So a 29 inch mtb tube will have the same diameter as a 700c road wheel while a 27 5 inch tube will be the same diameter as a 650b road wheel. While you can find a variety of bikes with wheel sizes ranging from 16 to 27 5 inches the most common sizes include 26 inches 27 5 inches 29 inches and 700c. There are five basic steps to fixing a flat tire. Mtb tubes must be the correct width as well also measured in inches.

Finding the right inner tube depends on the size of the tires on your bike. Use a tube within 3 8 inch of the stated width for road bikes. Slip off the tube. For example choose a tube for a mountain bike if the width is within inch of the tire s stated width.

Fit the bike wheel back on. Many road tyres are now 25mm and cyclocross touring and hybrid bike wheels may have tyres fitted that are up to 36mm so make sure you carry the appropriate width tube. Mountain bike tubes range in size from 26 through to a 27 5 and 29. Bicycle tires come in a variety of sizes and with time the international organization for standardization iso has developed a universal system to better understand and regulate tire and rim sizing.

However the evolution of tires and rims has made these measures inaccurate when it comes to compatibility. 700c wheel size 29 27 5 650b inch wheel sizes.