Bike Wheel Diameter Comparison

Also the rim s diameter expressed in this manner coincides with the inner diameter of the tire.

Bike wheel diameter comparison. A guide to bike tire sizes traditional sizing systems. Therefore a 20 622 tire is a tire 20mm wide that fits on a rim with 622mm in diameter typically a road bike rim or a 29er one. The former is fractional and the latter decimal and as a rule decimal and fractional tyre sizes that look the same are not. 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.

What you will see in these charts is that adult bikes are generally measured by their bicycle frame size. Since the tire wraps around your rim the wheel diameter includes the tire on both sides thus the multiplication by 2. Given rim diameter the iso diameter and tire diameter the size of your tire converted to millimeters wheel diameter rim diameter tire diameter 2. If you are unsure of your bicycle tire size you can look into a bicycle tire table where you can easily and simply find just the tires that fit your bike.

There is also the french system that measures the sizes we re talking about 700x20c. Metric tire sizes are a bit demanding when it comes to understanding what size they really are. 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. 29 x 2 3 indicates a tire with a 29 outer diameter and a 2 3 width.

24 inch iso 507 mm. 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. Wheel size is a very important metric if you are a child because you need to be able to stand over your bike if you want to ride it and wheels that are too big won t let you do that. 700x25c indicates a tire with a 700mm outer diameter and a 25mm width.

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. Mountain bike wheels are described by the approximate outer diameter of the rim plus a wide 2 inch tire. A tire size you might see on a road bike. The first number reffers.

Wheel circumference wheel diameter pi. Measure your bicycle wheel and tire size with table. However the evolution of tires and rims has made these measures inaccurate when it comes to compatibility. Use our tire size comparison calculator to find all your tire comparison needs.

A third type of tire size might appear on either a mountain or a road tire. Those numbers are only good with the other two. It might be supposed that these two tyres are both notionally 26 diameter and one and a half inches in width but 26 1 is a whole inch bigger than 26 1 5.