Updated: Dec 11, 2021
Below are some basic pointers that will help you when looking to buy new tyres for your bike.
The tyre tread is the portion of the tyre that will interface with the ground. Treads coming in a variety of different shapes, sizes and compounds depending on what the intended use for the tyre is.
The tyre bead is the inner most circumference of the tyre which will interface with the rim of your wheel. This is an important feature that ensures the integrity of the tyre wheel interface and for a tubeless setup it ensures an air tight seal.
The tyre width is the dimension indicating how wide the tyre will be. This is important to consider in context with the width of your rim and will also influence the drag experience when pedalling.
The tyre profile is essentially the height of tyre.
The tyre diameter is the dimension of the inner circumference of the tyre. This much match your wheel set. i.e there are separate sizes to fit 26", 27.5" and 29".
The sizing label is a standard format used to show a tyres dimensions. This can normally be found on the side wall of your tyre.
Normally the size is denoted as Diameter X Width
i.e. 29 X 2.3 (Meaning to fit a 29 inch rim and is 2.3 inches wide).