Mountain Bike Wheel Size For Computer

Most road bike wheel sizes start with 700 but other common sizes for mountain bikes include 29 24 16 and 12. Compare this number to the chart on page 15 in the sigma manual see link in references section to determine tire size. The easiest way of how to determine the wheel size for a bike computer is to roll the bike on the ground.

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Some bike computers require you to input tire size in centimeters while others use millimeters.

Mountain bike wheel size for computer. Brown contends it is important to ride aboard the bike when executing the roll out method to simulate riding conditions. I know there is a lot of differences based on tire size and pressue and what not but there used to be a thread that just had the in the ballpark cicumference to enter into a computer. If you set your 26 2 1 wheel size to. The evans cycles guide to mountain bike wheel size.

Ranging from 12in up to 27 5in the size of the wheels are catered to the size of the. Second place a tape measure on the ground. 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. 1 0 the measured mile 0 95 what your computer read.

Along with the traditional adult mountain bike wheel sizes there are a host of kids bike wheel sizes too. If your computer asks for radius divide your result by 6 2832 to obtain that value. The venerable sheldon brown has a gear calculator that uses a different method to determine wheel size. Get the latest mountain bike reviews news race results and much more by signing up for the mtbr newsletter.

We take a look at them head to head in a. Wheel circumference of 29er for computer setup. 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. We investigated two of the most popular mountain bike wheel sizes available the 650b and the 29er.

Stand your wheel up on the ground. 2091 and rode the measured mile and came up short maybe your computer read 95 miles then you d do. Measure the height of the wheel from top to bottom with your millimeter tape. His calculator uses an pre defined diameter for every rim tire combination and his diameters are almost always different than what the math would predict.

A 27 5 wheel is a 650b wheel which is not listed. First pump up the tires.