- The X110 chainrings are compatible with the Shimano Dura Ace 9000/R9100, Ultegra 6800/8000 and 105 5800/R7000 11 speed chainsets. For complete compatibility you must replace both inner and outer with TA rings. Please note: these chainrings are designed to be compatible with the modern chainsets that have a cutout on one arm, they are also backwards compatible with the earlier chainsets that do not have the cutout. Features and Information * Material: 7075 T6 Aluminium, * Unique PCD: 110mm 4 arms. * Outer : 48, 49, 50, 51, 52, 53 teeth. * Inner : 33, 34, 36, 38, 39, 42 teeth. * Colour : Black.
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