The most accurate way to measure a seat post is to measure its outside diameter.
Here's how to determine your seat post size, using the provided reference from a YouTube video:
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Measurement Technique: When measuring the seat post, ensure you are measuring the largest point of the seat post's diameter. If you measure it at an angle, the measurement will appear smaller than the actual size. For example, the reference mentions that if a measurement looks like "26.05" when measured at an angle, it's not accurate. You need to find the point where the measurement is the largest, such as "27.23," which would then be the correct size.
- Example: If you're measuring and get readings like 26.0, 26.05, and then 27.23, the correct seat post size is 27.23, because it's the largest measurement obtained.
In essence, the key is to find the largest diameter reading on your seat post to identify the correct size.
