SHIMANO chainring Ultegra FC-6800 crank LK110 inside
With their special tooth profiles, mount donate and climbing aids allow Ultegra FC-6800 chainrings a particularly soft and fast switching. So with them a shift under load, as it was usual only from the rear derailleur, easily possible. Its construction of carbon fiber reinforced plastic with aluminum teeth helps to keep the weight low while increasing torsional rigidity. The hollow section of the large chainrings also contributes to this.
NOTE: The letter combinations (MA, MB, MD) behind the numbers of teeth should match for large and small chainrings. The Ultegra FC-6800 chainrings have been specially tuned by their climbing aids and can achieve their superior shifting performance only in the combinations provided by Shimano.
Number of teeth (combinability index): 34 (MA), 36 (MB), 39 (MD) teeth
bolt circle diameter : 110 mm
Mounting type: 4-hole, asymmetric
Compatibility: Shimano Ultegra FC-6800
Weight: not specified by the manufacturer
Scope of delivery: 1x chainring