Wheel dimensions and specifications
Bicycle Wheel Dish: What It Means and How to Measure It
What wheel dish is, how to read the size numbers on a bicycle tire sidewall, how hub flange offsets create dish, and how to measure and correct it with a dishing gauge, calipers or a truing stand.
Wheel and Rim Runout: Meaning and Tolerances
What wheel runout is, how radial and lateral rim runout tolerances are specified, how to read tire sidewall sizes, and how to measure rim runout with a dial indicator.
Wheel Runout vs Tire Runout: Reading the Sidewall and Telling the Difference
How to read tire sidewall sizes, calculate sidewall height and diameter, and tell wheel runout from tire runout in a vibrating tire and wheel assembly.
Bicycle Quick-Release Axle Dimensions: Diameter, Length and Hub Spacing
Standard bike quick-release axle sizes explained: 9 mm front and 10 mm rear axle diameter, 100/130/135 mm hub spacing, axle length, and how to measure them.
Wheel Measurements Explained: Diameter, Width, Offset and More
Learn what tire and wheel markings mean, how to measure rim width with or without the tire, and how offset, backspacing and tire size affect diameter.
Motorcycle Spoke Length Calculator: From Tire Sidewall Numbers to Wheel-Building Dimensions
How a motorcycle spoke length calculator works, from tire sidewall sizes and rim diameter to ERD, hub flange diameter, flange offset and lacing pattern, with worked calculations and their limits.