main calculator | triplet lacing calculator

Rim Dimensions

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to select them here.

Hub Dimensions

form populated with data for:

Hope Pro 4 Boost 110mm

Build Parameters

ERD Center-flange distance # Spokes
Drilling offsetA positive value will move left nipples to the left or right nipples to the right. (Negative values do the opposite.)
Flange pitch circle dia
Cross patternIndependent left & right values. Decimal cross values are handled just like Damon Rinard's spocalc.xls, but are not currently supported by the rendering engine.
Spoke hole diameter
Hub offsetA positive value will move the entire hub to the right of center.
 - ICE trike = 6mm
 - Pugsley = 17.5mm
 - Moonlander = 28mm
Rim FlipAuto will flip your rim to the strongest orientation. (only affects asymmetrical rims)
Left Right
Spoke length 266.8mm 267.6mm
Tension distribution 100% 76%
Spoke head clearance 2.34mm 2.34mm
Bracing angle 5.4° 7.1°
Wrap angle (at rim) 5.7° 5.7°
Total angle at rim 7.8° 9.1°
Effective tangential PCD 55.2mm 55.2mm
Flange exit angle 73.2° 73.2°
Theta angle 67.5° 67.5°
wheel dish rendering spoke lacing rendering (left flange) spoke lacing rendering (right flange)