Mountain Bike Inner Tube Measurements

Then within these categories there are further sub divisions such as 26 inch 27 5 inch and the 29ers commonly.

Mountain bike inner tube measurements. Mountain bike tubes range in size from 26 through to a 27 5 and 29. 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. Sunlite already makes one of our favorite mountain bike inner tubes and this popular company makes a great reliable and affordable inner tube for any style of bike. The humble inner tube may be one of the simplest parts on your bike but with a wide range of sizes different valve types and a choice of materials choosing the right tube isn t necessarily as.

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. For example a 700c tube can be substituted for a 27 inch tube and vice versa. Unlike an inner tube s diameter which is fixed an inner tube s volume can operate effectively over quite a wide range. Because inner tubes stretch they typically come in a range of widths.

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

The sunlite tube comes in a variety of sizes which are perfect for smaller wheels like a kid s bike or a bmx to a roadster or cruiser style. For example one of our most popular tubes is the 26 x 1 75 2 125 which means it fits a 26 inch diameter tire with a width in the range of 1 75 to 2 125 inches. Choosing an inner tube what size inner tube should i choose for my bike. Inner tubes vary in size depending on the circumference of the wheel and the width of the tyre.

Mountain bike tyre sizes are usually stated in inches. For example choose a tube for a mountain bike if the width is within inch of the tire s stated width. When it comes to replacing your inner tube how do you know which size you need for your bike. 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.

So while the inner tube we buy for one of our examples above has to be 700c in diameter the width it will suit may be marked on the box as 23 25c or even 20 28c.