Installing a Sigma bicycle computer: Difference between revisions
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The best thing to do is make a mark on the bottom of your front tire and on the ground with a marker or chalk (something you can see on the tire and the ground). Then, roll the bike forward until the tire has made two complete revolutions. Mark the spot on the ground where the second revolution is completed and measure the distance between the first mark and the last mark on the ground. Divide the number by two to get the circumference of the wheel. | The best thing to do is make a mark on the bottom of your front tire and on the ground with a marker or chalk (something you can see on the tire and the ground). Then, roll the bike forward until the tire has made two complete revolutions. Mark the spot on the ground where the second revolution is completed and measure the distance between the first mark and the last mark on the ground. Divide the number by two to get the circumference of the wheel. | ||
Click on this animation to make this more clear. | |||
[[Image:rolling A.gif| | [[Image:rolling A.gif|300px]] | ||
====How to determine your wheel setting==== | ====How to determine your wheel setting==== | ||