Hard to find older 170mm carbon crankset. Spindle is GXP so 24mm on driveside & 22mm on non-drive side. Removed from 2012 Ibis Tranny. Has some minor scratches but structurally sound. Weighs 462g Came with double chainring but was quickly converted to 1 by using single chainring. This auction is for crankset only (plus 3 bolts) but if you need chainrings I have few 30t, 32t, 34t & 36t Spindle is made for non-boost setup using 6mm offset chainring but will work on boost frames if you use 3mm offset chainring.