Bicycle Speedometer Wheel Size Chart

Use our speedometer calibration calculator to compare how fast you are traveling and your speedometer reading.

Bicycle speedometer wheel size chart. It will automatically calculate the estimated circumference in mm used by most new cycle. 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. 09 august 2010. The table below is based on rim sizes and tire cross sections rather than than nominal sizes.

A bicycle computer can be used on an electric scooter or go kart if the correct wheel size is programmed into it. Generic bike computer wheel size calculator. Most bicycle computer instruction manuals only list wheel size input numbers for 16 and larger wheels however bicycle computers can be used with wheels smaller than 16 if the correct wheel size is programmed into the computer using the calculator above. Speedometer calibration made easy.

When you re done using this page check out my new bicycle gear ratio comparison page. 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. 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. Etrto tire size l mm l cm inch 47 203 12x1 75 935 94 54 203 12x1 95 940 94 12 40 254 14x1 50 1020 102 14 47 254 14x1 75 1055 106 40 305 16x1 50 1185 119 47 305 16x1 75 1195 120 16 54 305 16x2 00 1245 125 28 349 16x1 1 8 1290 129 37 349 16x1 3 8 1300 130 32 369 17x1 1 4 369 1340 134 40 355 18x1 50 1340 134 47 355 18x1 75 1350 135 18 32 406.

The chart below doesn t list all possible tire sizes but does list the most popular ones. If you don t have that ability you should pick the closest wheel circumference you can note that the sensor will only pickup.