This is a hollow chromoly BMX Spindle for 48 spline, 19mm cranks. This spindle is 138mm long. It uses 3/8″ x 24tpi spindle bolts, which are the same as the original Profile solid spindles (bolts not included).

This spindle will work withmany common cranks like Profile Race, Fit Indent, new Haro Lineage, early gen Redline Device, and others.