Features Campagnolo X.P.S.S. (eXtreme Performance Shifting System) featuring geometrically optimized chainring teeth. Optimized when mated to a full Campagnolo drivetrain.
Ultra-Torque system have both drive and non-drive side bearings pre-installed
Double standardized bolt circle diameter allows for use of standard, mid-compact and compact chainrings
Requires use of Ultra-Torque bottom bracket cups(Not included)
MPN: FC18-CE540S, EAN: 8050046167382