main calculator | triplet lacing calculator

Rim Dimensions

form populated with data for:

H PLUS SON Archetype 622

Hub Dimensions

form populated with data for:

Sturmey Archer XL-FDD 100mm

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 292.5mm 292.9mm
Tension distribution 100% 89%
Spoke head clearance 0.2mm 0.2mm
Bracing angle 5.5° 6.2°
Wrap angle (at rim) 10.6° 10.6°
Total angle at rim 11.9° 12.2°
Effective tangential PCD 111.2mm 111.2mm
Flange exit angle 90.6° 90.6°
Theta angle 80° 80°
wheel dish rendering spoke lacing rendering (left flange) spoke lacing rendering (right flange)