Inputs
What it uses
- Rim ERD
- Spoke count and crossing
- Left and right flange diameter
- Left and right centreline distance
Maintenance / Available now
Spoke-length calculator
Calculate spoke lengths from ERD, hub geometry, spoke count and lacing.
Your inputs
Calculate a starting point.
Estimated result
Supporting information
Know what shapes the result.
The calculation uses the Euclidean spoke triangle from ERD, flange diameter, centreline distance and the hole-to-hole crossing angle.
Best used for
A practical starting point
Checking a measured wheel-build geometry calculation before verifying spoke and nipple choices.
Limitations
Check the context
Incorrect ERD, flange-hole or centreline measurements can produce a wrong length. The result does not prove hub, rim, washer or nipple compatibility.
Before you rely on it
Three useful questions.
What does the spoke-length calculator do?
Calculate spoke lengths from ERD, hub geometry, spoke count and lacing.
How does this tool work?
The calculation uses the Euclidean spoke triangle from ERD, flange diameter, centreline distance and the hole-to-hole crossing angle.
What are the limitations?
Incorrect ERD, flange-hole or centreline measurements can produce a wrong length. The result does not prove hub, rim, washer or nipple compatibility.