To accurately measure your seatpost, you need to determine its diameter. The video reference mentions that if measurements fall between available sizes (e.g., around 31.7mm), you would round up to the closest available size, such as 31.8mm.
Here's how to figure out your seatpost size:
- Find Markings on Your Old Seatpost: The size is often printed directly on the seatpost itself, usually near the bottom. Look for a number followed by "mm" (e.g., 27.2mm, 30.9mm, 31.6mm).
- Measure the Inner Diameter of the Seat Tube: If your seatpost isn't available, you could measure the inside diameter of your bikes seat tube.
- Use Calipers: Use digital calipers for the most accurate measurement. Measure the outer diameter of the seatpost.
- Consider Rounding: According to the reference, if your measurement is between standard sizes, round to the nearest available size. For instance, if you measure 31.7mm, the correct seatpost size is likely 31.8mm.
