Series of chainrings with five 110mm BCD holes, compatible with the Campagnolo ® 11-speed crankset and transmission. Manufactured from CNC-machined AL 7075 T6 aluminium alloy. HT Hard Treatment anodization. Five teeth options available for internal and external chainrings. The XCA version (item code CGCASB) with threaded holes is guaranteed compatible with Super Record, Record and Chorus 2011-2014 cranksets.