aBLACK ROAD ROUND 110/4BCD Shimano DA R9100 ULT R8000 52 Teeth DIFFERENT COLORS

AB Premium Shimano 110/4 BCD compatible 2-speed chainrings are designed for the new type of Shimano cranks Dura-Ace 9100 and Ultegra 8000. They are compatible with Di2 and are considered the finest chainrings on the market in terms of shifting, smoothness of pedaling, and manufacturing quality. They have the same aesthetic as the older model.

Important: These chainrings are also backwards compatible with 9000 and 6800. The mounting tabs differ slightly in appearance from the older model, but with the use of dedicated 9000 or 6800 bolt covers, they look perfect. This is especially important for the 53/39 combination, as we only provide it under this category but can be retrofitted to 9000 and 6800 cranks.

Compatible with: Shimano Dura-Ace 9100, R9150 Di2 and Ultegra 8000, R8050 Di2. They can also retrofit 9000 and 6800 cranks, but use bolt covers for the best appearance.