The lifespan of a bike tire is around 1,000 to 3,000 miles although touring bike tires can last up to 4,000 miles.
The lifespan of bike tires in years is around 3 to 5 years although how often you use the bike will also factor into the lifespan of the bike tire.
Some bike tires will degrade overtime before they actually wear down.
If the bike tire is cracking or getting worn down on tread then it should be replaced.
The rubber that bike tires are made off gets brittle with age and can come apart so if you notice cracks on the tire, especially on the sidewall it's a sign that the bike tire needs replaced.
The 3 numbers on a bike tire mean the tires width in millimeters, followed by the inner diameter of the bicycle rim that it's made for in millimeters.
For example if your tire reads 25-622 then it means the tire is a 25 mm wide tire which fits on a rim that has a 622mm inner diameter.
The French system for bicycle tires will often use "700x25c marking where the 700 means the outer diameter of the tire in millimeters and the c means the width of the tire according to the older French system.
The C on the bike tire means the tire's width, which is often between 28 to 35 millimeters.
700 on a bike tire means the approximate diameter of the tire in millimeters.
The 700 on the bike tire means that the bike tire's diameter is around 700 millimeters and is a French system.
The C on the bike tire means the tire's width, which is often between 28 to 35 millimeters.
700 C bike tires are made to fit 700c bike rims which also have a diameter of 622 millimeters.
The 700C is also now the world's major wheel size standard for road bikes.
The 700C size also equates to around 700รท25.4 = 27.5 inches.
The bicycle rim diameter of a 700c wheel is actually slightly smaller than that of a '27inch'.
700c bead diameter is 622mm whereas 27'' bead diameter is 630mm.