Shimano Ultegra FC-6800 11-speed chainrings. For bolt circle 110mm 4-arms spider.
Hollowglide technology The chainrings are hollow to save weight and drastically improve stiffness and aerodynamics. They ensure optimum power transfer and improved shifting performance.
Note:These are chainrings from different types (MA, MB, MD). For optimal shifting performance only use chainrings from the same type. So it is recommended to combine MA with MA, MB with MB and MD with MD.
The 50 teeth chainring requires special bolts and caps. Those can be ordered separately. Fitting for derailleur: 11-speed Included in delivery: 1 chainring Material: aluminium anodised Weight supplement: 50 Zähne) approx. 34 gram (34 Zähne)
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