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Spoke Calculator

Truing simulator

A practice sandbox. Select spokes and turn the nipples — see how the tension moves, how the neighbours react, and how the rim's centering (dish), lateral true and radial true respond. Qualitative teaching model, not build advice.

New to the terms? Glossary → · Wheelbuilding fundamentals →

perfect wheel at target
Reference (tight) side
Select nipples 0 selected
or click spokes on the wheel →
turn:·
centering
off to NDS 0.29 mm
lateral true
0.00 mm
radial true
0.00 mm
L avg 110 · spread 0 kgf
R avg 110 · spread 0 kgf
Dish strategies (¼ turn, whole side)
One side only also shifts total tension; tighten one + loosen the other moves the dish at ~constant tension.

Qualitative teaching model — a quarter turn ≈ 18 kgf on the driven spoke; neighbours and rim deflection are approximated and decay over a few spokes. Real wheels vary with rim/spoke stiffness; not a substitute for a truing stand.

Truing stand — live
lateral -0.29 mm · max 0.29
radial -0.29 mm · max 0.29
scope: radial · lateral (scrolling)
L 110 · R 110
bars = spoke tension vs side target · band ±20%
Lateral true (wobble)peak -0.29 mm · scale ±0.29
Radial true (hop)peak -0.29 mm · scale ±0.29
Dish (centering)0.29 mm toward NDS
center← NDS
Which way to turn the nipple?
TIGHTEN — turn clockwise ↻ (as you see it)
spoke:pulls into nipple → tension ↑

Spoke wrench, nipple at the top: clockwise (as you see it) tightens.