Bicycle Wheel And Tire Diameters. They carry some of the advantages of both formats with a smoother ride than a 26 inch wheel and more stiffness and durability than a 29 wheel. Here s how it works.
If we assume that the numbers are not worn away on your deck and example is 32 622 on your bicycle tires describes the 622 tire diameter while the 32 stands for the width of your bike tires. Nowadays bike tires are typically marked according to iso standard. The traditional sizing systems are based on a measurement of the outside diameter of a tire.
This would usually be measured in inches 26 27 etc or millimeters 650 700 etc.
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. If you choose to buy a bicycle tire that is wider than your old tires be sure that the tire will be a bit. The iso standard notation uses the diameter of the wheel bead seat in millimeters preceded by the inflated tire width in millimeters. Road tires generally come in the size 700c which roughly equals 700 millimeters.