Campagnolo Athena 11 speed carbon chainset, Power Torque System, 175mm arms, compact 50 and 34 tooth chainrings.

The crank arm carries the part code FC11-AT540C, serial 0001670552, and is stamped L 175. The ATHENA 11 marking is on the drive side arm and the chainrings are stamped 50/34. Q factor 145.5. All of this is photographed in the listing.

Both bottom bracket cups marked 68x46 are included and are shown fitted to the axle.

Used condition. The carbon arms have surface marks and scuffs from use. The chainrings show normal wear with the tooth profiles intact and no hooking. Pedal threads are clean and undamaged.

For a 68mm press fit shell with the cups shown. A Power Torque crank puller is needed to separate the arms. 

Other Campagnolo parts from the same groupset are in my other listings.