The Cyclocross Tire Width
Crowdsource Project |
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Are you
tired of the cyclocross tire width debate? If so, enter your data and
we'll crunch the numbers, perform the analysis, calculate the
statistics, and make all the results available to contributors.
All you have to do is share your data. |
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The width
of cyclocross clincher tires has a lot to do with the width of the
rim and little to do with the claimed width from the manufacturer.
So we will use your data to define the relationship between outer
tire width and internal rim with. |
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While we
want to keep this as simple as possible, we have some standards to
follow for the sake of accuracy. Please follow the steps below
exactly and carefully. It will make the results better
and everyone will be happy! |
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Things
you will need: Your cyclocross tire, a suitable rim, a pump, and
digital calipers. |
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Measuring the internal rim width:
The internal width of a rim can vary so we need measurements at four
locations. |
- Enter the model of the rim
as the manufacturer would describe it. Enter
"unknown" if you don't know.
- Enter the approximate
manufactured year.
- Starting with the valve stem at
12 o'clock, measure and enter the internal rim width near 12, 3,
6, and 9 o'clock in millimeters. Enter all measurements
with two decimal places (e.g., 34.21).
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Measuring the external
tire width: The tire width can vary - a lot! Age, wear, and location
around the tire can affect the width.
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- Enter the model of the tire.
Be specific and precise!
- Enter the approximate
manufactured year.
- Inflate the tire to 40psi.
Make sure the tire is well seated.
- Starting with the valve stem at
12 o'clock, measure and enter the tire width near 12, 3,
6, and 9 o'clock in millimeters. Precautions: do
not squeeze the tire, do not measure on mud, raised letters,
tread blocks, or sprues. Enter all measurements with two
decimal places (e.g., 34.21).
- Select how long the tire has
been inflated.
- Select how many miles are on the
tire.
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Thanks for your contribution. You
will receive instructions to access the data once your entries have
been reviewed. |
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