Spoke length calculator
Normal wheels v1: fast, public, shareable.
Inputs
Measure where possible. Published ERD can be wrong.
Standard hub and rim geometry for most builds.
Hub diameter (PCD) (mm)
Flange offset (mm)
Centreline to flange spoke-hole plane (or row centre for straight pull).
Spoke hole dia. (mm)
ERD (mm)
Asym rim offset (mm)
If rim has an offset spoke bed, enter the offset (often around 4 mm). The tool advises rim orientation to improve tension balance.
Spokes (total)
Cross
Number of spoke crossings. 0 is radial.
Spoke dia. (mm)
Results
Normal, 32h, L 2x, R 2x
Orientation: Auto
Left spoke length
- mm
Calc: - mm
Right spoke length
- mm
Calc: - mm
Tension ratio
-
Low-side tension estimate
-
Rim orientation advice
-
Worksheet (v1.4.1)
Enter values and press Calculate.
Calculation log
No log yet.
Shop spokes and nipples
Tip: after calculating, copy the link to save or share the build.
We are also able to perform part servicing on all E-bikes, for a comprehensive price list of all the services we can provide please refer to the PDF below.
*Please note all servicing costs are inclusive of labour only and any additional cost of parts will be added on top.