Mountain Bike Tire Sizes Explained

Also the rim s diameter expressed in this manner coincides with the inner diameter of the tire.

Mountain bike tire sizes explained. 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. These sizes can be thought of as a sort of shorthand for decimal sizes each with a corresponding iso measurement. As long as your replacement tire size matches your original though no need to worry about what style of bike you might have mountain bike tires. Mountain bike tire size and width.

Where you see a block of two or more compatible sizes having the same bead diameter you can assume that intermediate sizes exist that will also fit the same rim. 29 the 29er another popular size for mountain bike wheels and tires. Outer tire diameters can be 26 27 5 or 29. 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.

Sizes written as decimals such as 2 75 are different than sizes expressed as fractions such as 2 3 4. Therefore a 20 622 tire is a tire 20mm wide that fits on a rim with 622mm in diameter typically a road bike rim or a 29er one. The example sizes below give you a rough guide for tire sizes on different types of bikes today. Mountain bike tyres explained.

A cross country bike will have tires in the 1 9 to 2 25 width range. The table below lists most of the sizes of tyre that are likely to be found in the uk. Trail and all mountain bikes will have tires in the 2 25 to 2 4 width range. Widths range from 1 9 to nearly 5.

A mountain bike tyre is specifically designed for off road riding and features raised knobs or lugs designed to dig into loose material and provide grip on all terrain. 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. You can find this measurement on the side wall where you should see two numbers separated by an x ie. There are multiple tires to consider and it s important to understand tire size.

A good mountain bike tyre will provide low rolling resistance ample grip and provide a degree of cushioning that will enhance the quality of. The actual outer diameter of the tire may vary based on the tread pattern so the bds bead seat diameter is the measurement of the inner diameter of the tire. Tires are essential to mountain biking the type of terrain you ride and they can have a big impact on your riding experience. There is also the french system that measures the sizes we re talking about 700x20c.

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. Once you ve identified your tire diameter 29 27 5 or 26 you ll want to dial in your width.