What is the circumference of my tire?
In order to accurately program a bicycle computer , it is generally necessary to enter the exact tire circumference. The tire circumference varies depending on the rim, the inflation pressure and the load on the tire. For these reasons, it is not possible to list an exact tire circumference.
In order to accurately program a bicycle computer, we recommend a simple rolling test with the rider on the bicycle where a mark is made on the tire, and the distance between it's contact point with the ground is measured across one full revolution.
In order to accurately program a bicycle computer, we recommend a simple rolling test with the rider on the bicycle where a mark is made on the tire, and the distance between it's contact point with the ground is measured across one full revolution.
Updated on: 03/11/2025
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