Bike Tire Width Comparison

The second number is the tire width.

Bike tire width comparison. 700x25c indicates a tire with a 700mm outer diameter and a 25mm width. All size measurements are taken at an air pressure of 100 psi 6 9 bars on a 17 mm inner width rim. The traditional sizing systems were based on the measurement of the outside of diameter of the tire so it would be listed as diameter x width. Unfortunately evolution of tires and rims has made these measurements lose contact with reality.

Here s how it works. Below we prepared a tabel with rim sizes of 4 different bicycle types and their equivalents in inch etrto and french standards. A tire size you might see on a mountain bike. A 33 is a 33 no matter what but a 265 70 16 is a 30 1 2 tall tire and a 265 75r17 is a 32 1 2 tall tire.

Let s start with the 26 x 2 125 size that became popular on heavyweight balloon tire bikes in the late 30 s and still remains common on beach cruiser bikes. Metric tire sizes are a bit demanding when it comes to understanding what size they really are. A iso tire size of 28 622 which of course is backwards b c it s european from how we would refer to a 700 x 28c tire has a tire width of 28 mm and a rim diameter of 622 mm. Alongside the tire size you have the option of running tubeless or tubed tires.

If you choose to buy a bicycle tire that is wider than your old tires be sure that the tire will be a bit higher. Use our tire size comparison calculator to find all your tire comparison needs. 27 iso size 630 is an older size that was used for road bikes but since so many bikes were built with this size it is still readily available. Those numbers are only good with the other two.

Total tire thickness sidewall. If you find the width of your bike tires minor simply use the diameter which in this example is 622 remember however that the rim of your bicycle tires must be narrower than the tire itself. However the evolution of tires and rims has made these measures inaccurate when it comes to compatibility. This varies from 1 6 to 2 5 inches.

29 x 2 3 indicates a tire with a 29 outer diameter and a 2 3 width. 26 inches 27 5 inches and 29 inches. Tips regarding bicycle tire and rim sizes. A third type of tire size might appear on either a mountain or a road tire.

This size tire is very close to 26 inches in actual diameter. Tires come in three diameters. A tire size you might see on a road bike. A guide to bike tire sizes traditional sizing systems.

To get the approximate diameter of the wheel with the tire on you would take the diameter of tire x 2 because it s both on the top and bottom the diameter at. 26 iso size 559 is the most commonly used size for modern mountain bikes and is also used by many hybrid bikes. Size and weight measurements. Tires are also measured in width.

Generally speaking the width of the tire should remain within the interval obtained by multiplying the inner width of the rim with 1 45 and respectively 2.