27 5 Mountain Bike Tire Sizes

While 26 inch wheels are still considered the standard for mountain bikes 29 inch wheels are fast on their heels.

27 5 mountain bike tire sizes. 27 5 also know as 650b or 29 called 29ers with traditional 26 wheels reserved for dirt jump freeride and kids bikes. Then along came two wheel sizes that have for the most part overtaken 26 in. 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. 29 x 2 0 27 5 x 2 4 29 x 2 8.

How many of you have been on a 29er mountain bike. First on the scene were 29 in. Also known as 650b wheels. These sizes can be thought of as a sort of shorthand for decimal sizes each with a corresponding iso measurement.

But selecting the right mountain bike tire requires research and careful consideration. Basic choices include diameter which is most commonly 29 or 27 5 though there are still some standard mountain bikes out there rolling on 26 tires which is also the most common diameter for snow taming fat bike tires. Tires come in three diameters. In many situations the side of the tires is where this information lies.

The right size for you largely depends on what you re looking to get from a mountain bike and the type of terrain you like to ride. Mountain bike tire size and width. 26 inches 27 5 inches and 29 inches. And right behind those big 29ers are wheels of yet another size.

Most mountain bikes today are offered in one of two wheel sizes. Every tire comes with a slightly different experience and the size and width is what impacts this the most. The second number is the tire width. Trail and all mountain bikes will have tires in the 2 25 to 2 4 width range.

The wheel size is also known as 650b and is used as a marketing term by some manufacturers for their 27 5 the 650b has traditionally been a designation for a 26 inch diameter iso 40 584. On a timed run with both wheel sizes to see which is faster and feels the best over different terrain. This new category of tires can go by a variety of names 27 5 650 6fattie or even just plus tires. 27 5 vs 29 mountain bike wheels.

In all of these cases the wheel being used is a 27 5 or 650b rim with a 2 8 3 0 tire. The first number is the tire diameter. A cross country bike will have tires in the 1 9 to 2 25 width range. Up until now a typical mountain bike tire has varied in width from 1 9 to about 2 3.

Once you ve identified your tire diameter 29 27 5 or 26 you ll want to dial in your width. Sometimes referred to as 650b the 27 5 inch wheel fits right in between the 26 and 29 inch. 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.