Bicycle Wheel Sizes For Computer. Switching from 630 to 622 for example needs another 4mm of brake reach. A bicycle computer can be used on an electric scooter or go kart if the correct wheel size is programmed into it.
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The bead radius corresponds with the distance from the centre of the wheel to the centre of a brake block. The computer needs to know the tire size so that it can accurately translate tire revolutions into ride statistics such as mph or kph and distance traveled. These figures are useful for setting your cycle computer and precisely calculating gears.
To use the calculator below select a wheel and tire size from the table or enter the wheel and tire size in mm in the dia.
Switching from 630 to 622 for example needs another 4mm of brake reach. Generally you can look to your tire s sidewall to locate its size match this number usually something like 700 x 23 or 26 x 2 0 to a code in your bike computer s owner s manual and follow these instructions to enter the code into the computer. Half of the bead diameter i e. Your bike computer should have a way to do calibrations the old fashioned way by rolling the bike a known distance typically something like 10 meters after mounting the magnet sensor and from this it will calculate the necessary parameters for the wheel size.
