Profile 19mm Crank
The Profile 9mm crank features thick 4130 chromoly tubular crank arms and a 19mm Gun Drilled Hollow (GDH) 48-spline drive spindle.
The Profile 9mm crank features thick 4130 chromoly tubular crank arms and a 19mm Gun Drilled Hollow (GDH) 48-spline drive spindle.