Road Bike Inner Tube Size Chart

Mtb wheels in particular can be further categorised by 26 inches 27 5 inches and 29 inches. 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. Use a tube within 3 8 inch of the stated width for road bikes.

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Choosing an inner tube what size inner tube should i choose for my bike.

Road bike inner tube size chart. For example a 700c tube can be substituted for a 27 inch tube and vice versa. Mountain bike tyre sizes are usually stated in inches. Inner tubes vary in size depending on the circumference of the wheel and the width of the tyre. When it comes to replacing your inner tube how do you know which size you need for your bike.

On a product page you ll find inner tubes are labelled with a series of digits. Depending on whether your bike is a road bike touring bike mountain bike or child s bike the diameter and circumference of the wheel can vary. Finding the right inner tube depends on the size of the tires on your bike. There are a myriad of wheel sizes for road mtb touring and children s bikes.

Mtb tubes must be the correct width as well also measured in inches. 700 x 23 28c for road bike tubes 29 x 1 75 2 4 for mountain bike tubes the first figure is your wheel. Then within these categories there are further sub divisions such as 26 inch 27 5 inch and the 29ers commonly. Inner tubes will fit just one wheel size so you ll need to match your new tube to your wheel diameter.

For example choose a tube for a mountain bike if the width is within inch of the tire s stated width. 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. Mountain bike tubes range in size from 26 through to a 27 5 and 29. However inner tubes will cover a range of tyre widths.

A tube with a close diameter measurement will also work. Therefore any inner tubes which includes the width such as 700x 28 38 fitting 700c tyres of between 28 and 38 width will work. 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. Hi martin 622 is the tube wheel diameter which is the same as 700c so a road wheel and 33 is the width in mm.