*ONLY COMPATIBLE WITH 22mm SPLINE DRIVE SPROCKETS.
Beefed up from Profile's Race Cranks, the Columns featured oversized heat-treated 4130 chromoly crank arms - The STRONGEST Profile has ever made!
22mm Gun Drilled Hollow (GDH) chromoly spindle with 8mm hex aluminum axle bolts to keep the weight down.
No-boss only, meaning a 22mm spline drive sprocket (like the Profile Galaxy) must be used.
Column Crankset includes LH & RH crank arms, 22mm GDH chromo axle, aluminum axle bolts/washers, and Column Crank Tool for installation and removal.
Bottom bracket kit sold separately.
Weight: 29.62 oz