SHIMANO Ultegra FC-6800 Front Chainwheel 11 Speed Chainring
Hollow glide carbon/alloy construction with ramps and pins to match up with the aluminum inner chainrings.
BCD: 110mm
Some of the following are a “B” match which indicates that the parts are usable, but differ in materials, appearance, finish, size etc.
– FC-9000
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.