The pro crank is a 48 spline tubular chromoly crank with a mid sized bb included. Available in a shorter 165mm arm length for street riders
Material: tubular crmo arms, crmo spindle
Bearings: incl. Mid size bb set
Spindle: 19mm crmo spindle, 48 spline
Curved trapeze shaped crank arms
Left & right side sprocket bolt boss
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