main calculator | triplet lacing calculator

Rim Dimensions

form populated with data for:

Ryde Andra 40 406

Hub Dimensions

form populated with data for:

Shimano Alfine SG-S7001-8 and SG-S500 (8-spd) 135mm

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 159.8mm 158.5mm
Tension distribution 78% 100%
Spoke head clearance 9.29mm 9.31mm
Bracing angle 11.1° 8.6°
Wrap angle (at rim) 10.9° 10.9°
Total angle at rim 15.4° 13.8°
Effective tangential PCD 73.6mm 73.6mm
Flange exit angle 50.9° 50.9°
Theta angle 40° 40°
wheel dish rendering spoke lacing rendering (left flange) spoke lacing rendering (right flange)