Mountain Bike Tire Sizes Chart

Most mountain bikes today are offered in one of two wheel sizes.

Mountain bike tire sizes chart.

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. Also commonly referred to as casing width section width is expressed as the first two digits in the etrto size designation xx xxx marked on the sidewall of every wtb tire. Trail and all mountain bikes will have tires in the 2 25 to 2 4 width range. 27 5 also know as 650b or 29 called 29ers with traditional 26 wheels reserved for dirt jump freeride and kids bikes.

The chart is only applicable to light bicycle rims with a specific rim tire interface. For standard hardtails our mountain bike size chart should be a god send. 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. It s a holdover from an old french system that designated tire sizes using the letters a b and c.

Once you ve identified your tire diameter 29 27 5 or 26 you ll want to dial in your width. 29 the 29er another popular size for mountain bike wheels and tires. Tire section width is used to most accurately determine the size designation of a tire. The tire size chart below includes bicycle tire sizes and how they are commonly written.

Used on mountain bikes these tires also go by the names. Mountain bike size chart. 26 inches 27 5 inches and 29 inches. For example with a range from 4 3 to 5 0 4 7 is an optimal option for most riders.

If you use rims of other brands please send rim profiles to the tire maker for recommendations. A cross country bike will have tires in the 1 9 to 2 25 width range. Mountain bike tire size and width. 27 5 584 mm 650b tires.

These sizes can be thought of as a sort of shorthand for decimal sizes each with a corresponding iso measurement. So make sure you look at a tire size chart and try a full suspension mountain bike for size before buying. 27 5 650 6fattie or even just plus tires. Some special tires can even be wider up to 3 inches with some models.

Downhill bikes which are meant to withstand the abuse of drops and rock gardens are typically equipped with tires up to 2 5 wide. Tires are also measured in width. Note that the c does not stand for centimeters. Mountain bike sizing can be affected by suspension and your tire choices.