3D Spoke Calculator

Wheel Dimensioning Engine

Library:11 Rims|16 Hubs

Wheel CAD Engine2D CAD & 3D

High-Fidelity Bicycle Wheel Geometry & Technical Cross-Section Inspector

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Selected Components

Synced Across Tabs
Hub ModelHope Pro 5 Rear 135 mm — 32 holes — 6-Bolt
Rim ModelBrompton G Line 20" (406), 32-hole rear — eyelets, Presta

Assembly Parameters

32
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View settings
EXPLODE HUB0%

Engine Output MetricsCalculated

Left / non-drive — traditional--mmNearest whole millimetre: -- mm
Right / drive — traditional--mmNearest whole millimetre: -- mm
Estimated 3D path — millimetres
Spoke group3D shaftExtra from bendsTraditional + allowance

The bend allowance compares the shaft path with its own straight chord, excluding the manufactured J-bend. These are geometric estimates, not validated purchase lengths. Final stock length depends on measured ERD and nipple engagement.

Effective Flange Offset
-- mm-- mm
Lateral Bracing Angle
--°--°
Rim Wrap Angle (2D)
--°--°
Total Rim Angle (3D)
--°--°
Flange Exit Angle
--°--°
Rotational Offset (Theta)
--°--°

Physics Analysis & Balance

Tension Balance-- % : 100 %
Inversely proportional to W_eff
LEFT TENSION--%
RIGHT TENSION100%