We The People Royal cranks are made from 100% 4130 heat-treated chromoly and feature 3-pc tubular BMX crank arms with a hollow chromoly 48 spline spindle, flush mount spindle bolts, and a 1-pc spindle/sprocket boss with regular and Nano drive bolt holes. RHD/LHD Compatible
Spindle: 19mm Hollow Chromoly
Spindle Splines: 48
Weight: 30.8 oz (w/o BB)