Mountain Bike Tire Tube Sizes
Mountain bike tubes range in size from 26 through to a 27 5 and 29.
Mountain bike tire tube sizes. Shop for bike tire tubes in bike components. Mtb tubes must be the correct width as well also measured in inches. The sizes you commonly see for mountain bike wheels like 26in 27 5in and 29in all refer to the outside diameter of the wheel with the tire fully inflated. 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 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. When it comes to replacing your inner tube how do you know which size you need for your bike. Mtb wheels in particular can be further categorised by 26 inches 27 5 inches and 29 inches. Mountain bike tyre sizes are usually stated in inches.
There are a myriad of wheel sizes for road mtb touring and children s bikes. A hybrid of road and mountain tires cyclocross tires are labeled as 700c and have widths indicated in millimeters like road bikes yet are knobbie like mountain bike tires. For example choose a tube for a mountain bike if the width is within inch of the tire s stated width. Read the size carefully.
Finding the right inner tube depends on the size of the tires on your bike. Mountain tire sizes 26 twenty six inch is the most commonly used size for modern mountain bikes and is also used on many hybrid or utility bikes. These sizes can be thought of as a sort of shorthand for decimal sizes each with a corresponding iso measurement. For example a 700c tube can be substituted for a 27 inch tube and vice versa.
Sizes written as decimals such as 2 75 are different than sizes expressed as fractions such as 2 3 4. It s actually the same bead seat diameter as 700c tires but most 29 tires are simply too wide and tall to fit 700c wheels. We ask for your understanding as you may experience delivery delays. Use a tube within 3 8 inch of the stated width for road bikes.
29 the 29er another popular size for mountain bike wheels and tires. A tube with a close diameter measurement will also work.