Standard Mountain Bike Tire Size

27 5 also know as 650b or 29 called 29ers with traditional 26 wheels reserved for dirt jump freeride and kids bikes.

Standard mountain bike tire size. Mountain bike size chart. 700x25c indicates a tire with a 700mm outer diameter and a 25mm width. There are five tire diameter sizes that are in common use on modern standard adult bicycles. 29 x 2 3 indicates a tire with a 29 outer diameter and a 2 3 width.

Every tire comes with a slightly different experience and the size and width is what impacts this the most. 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. These widely used measurements refer to the tire s diameter and are typically paired with a tire width in inches when written out i e. Trail and all mountain bikes will have tires in the 2 25 to 2 4 width range.

For standard hardtails our mountain bike size chart should be a god send. Whether you re mountain biking on dry trails in utah or through the waterfalls of iceland having the right tires is crucial for the best riding experience. A tire size you might see on a road bike. And right behind those big 29ers are wheels of yet another size.

Generally bike tire sizes are indicated with two numbers that correspond roughly to the outside diameter of the tire and the width of the tire. There are multiple tires to consider and it s important to understand tire size. A cross country bike will have tires in the 1 9 to 2 25 width range. Most mountain bikes today are offered in one of two wheel sizes.

A third type of tire size might appear on either a mountain or a road tire. Sometimes referred to as 650b the 27 5 inch wheel fits right in between the 26 and 29 inch offerings. 29 x 2 0. These would usually be measured in inches 26 27 etc or millimeters 650 700 etc.

So make sure you look at a tire size chart and try a full suspension mountain bike for size before buying. Once you ve identified your tire diameter 29 27 5 or 26 you ll want to dial in your width. Nowadays bike tires are typically marked according to iso standard a system originally developed by etrto european tire and rim technical organization but older english and french tire size dimensions are still used as well use the data from the following tables to determine interchangeability and convert between iso etrto english. 26 iso size 559 is the most commonly used size for modern mountain bikes and is also used by many hybrid bikes.

Sizes written as decimals such as 2 75 are different than sizes expressed as fractions such as 2 3 4. Mountain bike sizing can be affected by suspension and your tire choices. Read the size carefully. Conversion tables for common bicycle tire sizes.

Mountain bike tire size and width.