Ultegra 6800 11-speed, 15-tooth replacement sprocket

Shimano replacement sprocket for:
CS-R8000
CS-6800

Details:
15 teeth
For gear ratio 6800: 11-23; 11-25; 11-28; 12-25
For gear ratio R8000: 11-25; 11-28; 11-30; 12-25
Position: 5; 4 or 2

Important! To avoid a lower shifting quality, only sprockets of the same component group and number of teeth should be exchanged.