Road Bike Tire Size Chart

Some older road bikes still have the 27 inch size.

Road bike tire size chart. Mountain bike size chart. A tire size you might see on a road bike. Common road bike widths in millimeters come in sizes ranging from 18 to 23 with a typical road bike tire at 700 x 23. 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.

The logical version given rim diameter the iso diameter and tire diameter the size of your tire converted to millimeters wheel diameter rim diameter tire diameter 2. 29 the 29er another popular size for mountain bike wheels and tires. A chart of wheel sizes with an explanation of bikecalc s math. The letter at the end of a tire size is a throwback to an old french system when the letters a b and c designated different inner tire diameters it does not stand for cm.

It s actually the same bead seat diameter as 700c tires but most 29 tires are simply too wide and tall to fit. The tire size chart below includes bicycle tire sizes and how they are commonly written. Another reason not to exceed the 2 2 limit on road is that a more bulbous tyre can deflect sideways with a noticeable effect on control and roadholding. Bicycle tires come in a variety of sizes and with time the international organization for standardization iso has developed a universal system to better understand and regulate tire and rim sizing.

Jump down to the wheel size chart. So make sure you look at a tire size chart and try a full suspension mountain bike for size before buying. Mountain bike sizing can be affected by suspension and your tire choices. 700x25c indicates a tire with a 700mm outer diameter and a 25mm width.

Road bike tires generally come in three widths. 25 622 is the international standardization organization iso way of identifying the 700x25c tire in the example above. 23c 25c and 28c their width in mm. Because of the high pressure and desired low rolling resistance road tires come in narrow widths.

What size is my wheel. Mountain bike tyres are designed to take this extra stress but road tyres are not. A third type of tire size might appear on either a mountain or a road tire.