Felge und Nabe messen, um Speichenlängen zu berechnen: Unterschied zwischen den Versionen

Lay a measuring tape or ruler across the rim between two points directly opposite one another. Slide one end of the tape back and forth along the rim until the measurement is largest. Measure at three or four different angles spaced equally around the rim and take the average, in case the rim isn't perfectly round. (Spoke tension will make the rim round later, unless the rim is really bad. Then start with another rim.) Measure to the nearest 1mm or 1/32 inch, or better. If the diameter falls partway between millimeter or 1/32 inch marks on the tape, you could estimate the fraction.

If you measured in inches, multiply by 25.4 to get the diameter in millimeters. Convert the fraction after the last even inch to a decimal before multiplying: for example, 1/4" is 0.250, so a rim that measures 24 1/4 inches is 24.250 inches in diameter, or rounded to the nearest 1/10 millimeter, 616.0 mm. .